Home / 125,279.28-172,885.32-68,691.60

Finding the Fourth Proportional to 125,279.28, 172,885.32 and 68,691.60

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Solution

The fourth proportional to 125,279.28, 172,885.32 and 68,691.60 is: 94,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,279.28 : 172,885.32 = 68,691.60 : x
  2. Step 2: Convert to fraction form
    125,279.28/172,885.32 = 68,691.60/x
  3. Step 3: Cross multiply
    125,279.28x = 172,885.32 × 68,691.60
  4. Step 4: Simplify right side
    125,279.28x = 11,875,769,247.31
  5. Step 5: Solve for x
    x = 11,875,769,247.31/125,279.28
  6. Step 6: Final answer
    x = 94,794.36

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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.