Home / 111,501,997.56-153,810,769.32-103,610,812.20

Finding the Fourth Proportional to 111,501,997.56, 153,810,769.32 and 103,610,812.20

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Solution

The fourth proportional to 111,501,997.56, 153,810,769.32 and 103,610,812.20 is: 142,925,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,501,997.56 : 153,810,769.32 = 103,610,812.20 : x
  2. Step 2: Convert to fraction form
    111,501,997.56/153,810,769.32 = 103,610,812.20/x
  3. Step 3: Cross multiply
    111,501,997.56x = 153,810,769.32 × 103,610,812.20
  4. Step 4: Simplify right side
    111,501,997.56x = 15,936,458,734,352,042
  5. Step 5: Solve for x
    x = 15,936,458,734,352,042/111,501,997.56
  6. Step 6: Final answer
    x = 142,925,320.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.