Home / 107,215.38-147,860.40-66,932.86

Finding the Fourth Proportional to 107,215.38, 147,860.40 and 66,932.86

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Solution

The fourth proportional to 107,215.38, 147,860.40 and 66,932.86 is: 92,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,215.38 : 147,860.40 = 66,932.86 : x
  2. Step 2: Convert to fraction form
    107,215.38/147,860.40 = 66,932.86/x
  3. Step 3: Cross multiply
    107,215.38x = 147,860.40 × 66,932.86
  4. Step 4: Simplify right side
    107,215.38x = 9,896,719,452.74
  5. Step 5: Solve for x
    x = 9,896,719,452.74/107,215.38
  6. Step 6: Final answer
    x = 92,306.90

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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.