Home / 118,672.14-163,945.42-77,932.92

Finding the Fourth Proportional to 118,672.14, 163,945.42 and 77,932.92

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Solution

The fourth proportional to 118,672.14, 163,945.42 and 77,932.92 is: 107,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,672.14 : 163,945.42 = 77,932.92 : x
  2. Step 2: Convert to fraction form
    118,672.14/163,945.42 = 77,932.92/x
  3. Step 3: Cross multiply
    118,672.14x = 163,945.42 × 77,932.92
  4. Step 4: Simplify right side
    118,672.14x = 12,776,745,301.23
  5. Step 5: Solve for x
    x = 12,776,745,301.23/118,672.14
  6. Step 6: Final answer
    x = 107,664.24

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1.5x scale

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.