Home / 83,726.19-125,458.02-71,194.68

Finding the Fourth Proportional to 83,726.19, 125,458.02 and 71,194.68

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Solution

The fourth proportional to 83,726.19, 125,458.02 and 71,194.68 is: 106,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,726.19 : 125,458.02 = 71,194.68 : x
  2. Step 2: Convert to fraction form
    83,726.19/125,458.02 = 71,194.68/x
  3. Step 3: Cross multiply
    83,726.19x = 125,458.02 × 71,194.68
  4. Step 4: Simplify right side
    83,726.19x = 8,931,943,587.33
  5. Step 5: Solve for x
    x = 8,931,943,587.33/83,726.19
  6. Step 6: Final answer
    x = 106,680.40

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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.