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Finding the Fourth Proportional to 157,018.87, 216,637.17 and 89,030.52

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Solution

The fourth proportional to 157,018.87, 216,637.17 and 89,030.52 is: 122,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,018.87 : 216,637.17 = 89,030.52 : x
  2. Step 2: Convert to fraction form
    157,018.87/216,637.17 = 89,030.52/x
  3. Step 3: Cross multiply
    157,018.87x = 216,637.17 × 89,030.52
  4. Step 4: Simplify right side
    157,018.87x = 19,287,319,896.43
  5. Step 5: Solve for x
    x = 19,287,319,896.43/157,018.87
  6. Step 6: Final answer
    x = 122,834.41

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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.