Home / 134,535.25-185,658.65-77,979.43

Finding the Fourth Proportional to 134,535.25, 185,658.65 and 77,979.43

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Solution

The fourth proportional to 134,535.25, 185,658.65 and 77,979.43 is: 107,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,535.25 : 185,658.65 = 77,979.43 : x
  2. Step 2: Convert to fraction form
    134,535.25/185,658.65 = 77,979.43/x
  3. Step 3: Cross multiply
    134,535.25x = 185,658.65 × 77,979.43
  4. Step 4: Simplify right side
    134,535.25x = 14,477,555,701.57
  5. Step 5: Solve for x
    x = 14,477,555,701.57/134,535.25
  6. Step 6: Final answer
    x = 107,611.62

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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.