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Finding the Fourth Proportional to 157,159.83, 216,874.15 and 89,175.39

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Solution

The fourth proportional to 157,159.83, 216,874.15 and 89,175.39 is: 123,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,159.83 : 216,874.15 = 89,175.39 : x
  2. Step 2: Convert to fraction form
    157,159.83/216,874.15 = 89,175.39/x
  3. Step 3: Cross multiply
    157,159.83x = 216,874.15 × 89,175.39
  4. Step 4: Simplify right side
    157,159.83x = 19,339,836,907.17
  5. Step 5: Solve for x
    x = 19,339,836,907.17/157,159.83
  6. Step 6: Final answer
    x = 123,058.40

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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.