Home / 125,891.10-188,836.65-42,785.10

Finding the Fourth Proportional to 125,891.10, 188,836.65 and 42,785.10

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Solution

The fourth proportional to 125,891.10, 188,836.65 and 42,785.10 is: 64,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,891.10 : 188,836.65 = 42,785.10 : x
  2. Step 2: Convert to fraction form
    125,891.10/188,836.65 = 42,785.10/x
  3. Step 3: Cross multiply
    125,891.10x = 188,836.65 × 42,785.10
  4. Step 4: Simplify right side
    125,891.10x = 8,079,394,953.92
  5. Step 5: Solve for x
    x = 8,079,394,953.92/125,891.10
  6. Step 6: Final answer
    x = 64,177.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.