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Finding the Fourth Proportional to 125,391.59, 173,040.37 and 71,677.77

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Solution

The fourth proportional to 125,391.59, 173,040.37 and 71,677.77 is: 98,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,391.59 : 173,040.37 = 71,677.77 : x
  2. Step 2: Convert to fraction form
    125,391.59/173,040.37 = 71,677.77/x
  3. Step 3: Cross multiply
    125,391.59x = 173,040.37 × 71,677.77
  4. Step 4: Simplify right side
    125,391.59x = 12,403,147,841.57
  5. Step 5: Solve for x
    x = 12,403,147,841.57/125,391.59
  6. Step 6: Final answer
    x = 98,915.31

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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.