Home / 83,511.16-125,042.57-70,225.13

Finding the Fourth Proportional to 83,511.16, 125,042.57 and 70,225.13

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Solution

The fourth proportional to 83,511.16, 125,042.57 and 70,225.13 is: 105,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,511.16 : 125,042.57 = 70,225.13 : x
  2. Step 2: Convert to fraction form
    83,511.16/125,042.57 = 70,225.13/x
  3. Step 3: Cross multiply
    83,511.16x = 125,042.57 × 70,225.13
  4. Step 4: Simplify right side
    83,511.16x = 8,781,130,958.61
  5. Step 5: Solve for x
    x = 8,781,130,958.61/83,511.16
  6. Step 6: Final answer
    x = 105,149.19

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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.