Home / 100,589.85-138,773.66-62,336.79

Finding the Fourth Proportional to 100,589.85, 138,773.66 and 62,336.79

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Solution

The fourth proportional to 100,589.85, 138,773.66 and 62,336.79 is: 85,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,589.85 : 138,773.66 = 62,336.79 : x
  2. Step 2: Convert to fraction form
    100,589.85/138,773.66 = 62,336.79/x
  3. Step 3: Cross multiply
    100,589.85x = 138,773.66 × 62,336.79
  4. Step 4: Simplify right side
    100,589.85x = 8,650,704,189.27
  5. Step 5: Solve for x
    x = 8,650,704,189.27/100,589.85
  6. Step 6: Final answer
    x = 85,999.77

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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.