Home / 83,899.26-125,701.26-78,904.70

Finding the Fourth Proportional to 83,899.26, 125,701.26 and 78,904.70

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Solution

The fourth proportional to 83,899.26, 125,701.26 and 78,904.70 is: 118,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,899.26 : 125,701.26 = 78,904.70 : x
  2. Step 2: Convert to fraction form
    83,899.26/125,701.26 = 78,904.70/x
  3. Step 3: Cross multiply
    83,899.26x = 125,701.26 × 78,904.70
  4. Step 4: Simplify right side
    83,899.26x = 9,918,420,209.92
  5. Step 5: Solve for x
    x = 9,918,420,209.92/83,899.26
  6. Step 6: Final answer
    x = 118,218.21

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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.