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Finding the Fourth Proportional to 157,212.43, 216,952.58 and 85,592.43

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Solution

The fourth proportional to 157,212.43, 216,952.58 and 85,592.43 is: 118,117.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,212.43 : 216,952.58 = 85,592.43 : x
  2. Step 2: Convert to fraction form
    157,212.43/216,952.58 = 85,592.43/x
  3. Step 3: Cross multiply
    157,212.43x = 216,952.58 × 85,592.43
  4. Step 4: Simplify right side
    157,212.43x = 18,569,498,730.95
  5. Step 5: Solve for x
    x = 18,569,498,730.95/157,212.43
  6. Step 6: Final answer
    x = 118,117.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.