Home / 83,432.40-125,148.60-79,933.20

Finding the Fourth Proportional to 83,432.40, 125,148.60 and 79,933.20

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Solution

The fourth proportional to 83,432.40, 125,148.60 and 79,933.20 is: 119,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.40 : 125,148.60 = 79,933.20 : x
  2. Step 2: Convert to fraction form
    83,432.40/125,148.60 = 79,933.20/x
  3. Step 3: Cross multiply
    83,432.40x = 125,148.60 × 79,933.20
  4. Step 4: Simplify right side
    83,432.40x = 10,003,528,073.52
  5. Step 5: Solve for x
    x = 10,003,528,073.52/83,432.40
  6. Step 6: Final answer
    x = 119,899.80

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1.5x scale

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.