Home / 143,153.01-197,463.56-102,921.12

Finding the Fourth Proportional to 143,153.01, 197,463.56 and 102,921.12

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Solution

The fourth proportional to 143,153.01, 197,463.56 and 102,921.12 is: 141,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,153.01 : 197,463.56 = 102,921.12 : x
  2. Step 2: Convert to fraction form
    143,153.01/197,463.56 = 102,921.12/x
  3. Step 3: Cross multiply
    143,153.01x = 197,463.56 × 102,921.12
  4. Step 4: Simplify right side
    143,153.01x = 20,323,170,239.78
  5. Step 5: Solve for x
    x = 20,323,170,239.78/143,153.01
  6. Step 6: Final answer
    x = 141,968.17

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Double scale
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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.