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Finding the Fourth Proportional to 116,773.92, 159,980.85 and 112,400.55

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Solution

The fourth proportional to 116,773.92, 159,980.85 and 112,400.55 is: 153,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,773.92 : 159,980.85 = 112,400.55 : x
  2. Step 2: Convert to fraction form
    116,773.92/159,980.85 = 112,400.55/x
  3. Step 3: Cross multiply
    116,773.92x = 159,980.85 × 112,400.55
  4. Step 4: Simplify right side
    116,773.92x = 17,981,935,529.47
  5. Step 5: Solve for x
    x = 17,981,935,529.47/116,773.92
  6. Step 6: Final answer
    x = 153,989.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.