Home / 83,882.40-125,823.60-77,467.20

Finding the Fourth Proportional to 83,882.40, 125,823.60 and 77,467.20

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Solution

The fourth proportional to 83,882.40, 125,823.60 and 77,467.20 is: 116,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,882.40 : 125,823.60 = 77,467.20 : x
  2. Step 2: Convert to fraction form
    83,882.40/125,823.60 = 77,467.20/x
  3. Step 3: Cross multiply
    83,882.40x = 125,823.60 × 77,467.20
  4. Step 4: Simplify right side
    83,882.40x = 9,747,201,985.92
  5. Step 5: Solve for x
    x = 9,747,201,985.92/83,882.40
  6. Step 6: Final answer
    x = 116,200.80

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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.