Home / 112,691.27-155,513.39-61,703.08

Finding the Fourth Proportional to 112,691.27, 155,513.39 and 61,703.08

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Solution

The fourth proportional to 112,691.27, 155,513.39 and 61,703.08 is: 85,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.27 : 155,513.39 = 61,703.08 : x
  2. Step 2: Convert to fraction form
    112,691.27/155,513.39 = 61,703.08/x
  3. Step 3: Cross multiply
    112,691.27x = 155,513.39 × 61,703.08
  4. Step 4: Simplify right side
    112,691.27x = 9,595,654,446.94
  5. Step 5: Solve for x
    x = 9,595,654,446.94/112,691.27
  6. Step 6: Final answer
    x = 85,149.93

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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.