Home / 115,120.43-157,715.56-110,805.88

Finding the Fourth Proportional to 115,120.43, 157,715.56 and 110,805.88

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Solution

The fourth proportional to 115,120.43, 157,715.56 and 110,805.88 is: 151,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,120.43 : 157,715.56 = 110,805.88 : x
  2. Step 2: Convert to fraction form
    115,120.43/157,715.56 = 110,805.88/x
  3. Step 3: Cross multiply
    115,120.43x = 157,715.56 × 110,805.88
  4. Step 4: Simplify right side
    115,120.43x = 17,475,810,072.89
  5. Step 5: Solve for x
    x = 17,475,810,072.89/115,120.43
  6. Step 6: Final answer
    x = 151,804.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.