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Finding the Fourth Proportional to 115,532, 159,434.16 and 62,540

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Solution

The fourth proportional to 115,532, 159,434.16 and 62,540 is: 86,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,532 : 159,434.16 = 62,540 : x
  2. Step 2: Convert to fraction form
    115,532/159,434.16 = 62,540/x
  3. Step 3: Cross multiply
    115,532x = 159,434.16 × 62,540
  4. Step 4: Simplify right side
    115,532x = 9,971,012,366.40
  5. Step 5: Solve for x
    x = 9,971,012,366.40/115,532
  6. Step 6: Final answer
    x = 86,305.20

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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.