Home / 125,781.06-173,526.54-71,321.72

Finding the Fourth Proportional to 125,781.06, 173,526.54 and 71,321.72

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Solution

The fourth proportional to 125,781.06, 173,526.54 and 71,321.72 is: 98,394.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,781.06 : 173,526.54 = 71,321.72 : x
  2. Step 2: Convert to fraction form
    125,781.06/173,526.54 = 71,321.72/x
  3. Step 3: Cross multiply
    125,781.06x = 173,526.54 × 71,321.72
  4. Step 4: Simplify right side
    125,781.06x = 12,376,211,298.45
  5. Step 5: Solve for x
    x = 12,376,211,298.45/125,781.06
  6. Step 6: Final answer
    x = 98,394.87

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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.