Home / 125,422.40-173,083.03-71,708.55

Finding the Fourth Proportional to 125,422.40, 173,083.03 and 71,708.55

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Solution

The fourth proportional to 125,422.40, 173,083.03 and 71,708.55 is: 98,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,422.40 : 173,083.03 = 71,708.55 : x
  2. Step 2: Convert to fraction form
    125,422.40/173,083.03 = 71,708.55/x
  3. Step 3: Cross multiply
    125,422.40x = 173,083.03 × 71,708.55
  4. Step 4: Simplify right side
    125,422.40x = 12,411,532,685.93
  5. Step 5: Solve for x
    x = 12,411,532,685.93/125,422.40
  6. Step 6: Final answer
    x = 98,957.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.