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Finding the Fourth Proportional to 157,103.96, 216,807.17 and 89,125.52

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Solution

The fourth proportional to 157,103.96, 216,807.17 and 89,125.52 is: 122,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,103.96 : 216,807.17 = 89,125.52 : x
  2. Step 2: Convert to fraction form
    157,103.96/216,807.17 = 89,125.52/x
  3. Step 3: Cross multiply
    157,103.96x = 216,807.17 × 89,125.52
  4. Step 4: Simplify right side
    157,103.96x = 19,323,050,236.32
  5. Step 5: Solve for x
    x = 19,323,050,236.32/157,103.96
  6. Step 6: Final answer
    x = 122,995.31

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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.