Home / 103,252.62-142,572.65-84,135.27

Finding the Fourth Proportional to 103,252.62, 142,572.65 and 84,135.27

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Solution

The fourth proportional to 103,252.62, 142,572.65 and 84,135.27 is: 116,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,252.62 : 142,572.65 = 84,135.27 : x
  2. Step 2: Convert to fraction form
    103,252.62/142,572.65 = 84,135.27/x
  3. Step 3: Cross multiply
    103,252.62x = 142,572.65 × 84,135.27
  4. Step 4: Simplify right side
    103,252.62x = 11,995,387,981.69
  5. Step 5: Solve for x
    x = 11,995,387,981.69/103,252.62
  6. Step 6: Final answer
    x = 116,175.14

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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.