Home / 187,864.29-281,918.57-81,352.26

Finding the Fourth Proportional to 187,864.29, 281,918.57 and 81,352.26

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Solution

The fourth proportional to 187,864.29, 281,918.57 and 81,352.26 is: 122,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,864.29 : 281,918.57 = 81,352.26 : x
  2. Step 2: Convert to fraction form
    187,864.29/281,918.57 = 81,352.26/x
  3. Step 3: Cross multiply
    187,864.29x = 281,918.57 × 81,352.26
  4. Step 4: Simplify right side
    187,864.29x = 22,934,712,398.71
  5. Step 5: Solve for x
    x = 22,934,712,398.71/187,864.29
  6. Step 6: Final answer
    x = 122,081.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.