Home / 125,279.24-172,884.10-68,690.48

Finding the Fourth Proportional to 125,279.24, 172,884.10 and 68,690.48

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Solution

The fourth proportional to 125,279.24, 172,884.10 and 68,690.48 is: 94,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,279.24 : 172,884.10 = 68,690.48 : x
  2. Step 2: Convert to fraction form
    125,279.24/172,884.10 = 68,690.48/x
  3. Step 3: Cross multiply
    125,279.24x = 172,884.10 × 68,690.48
  4. Step 4: Simplify right side
    125,279.24x = 11,875,491,813.37
  5. Step 5: Solve for x
    x = 11,875,491,813.37/125,279.24
  6. Step 6: Final answer
    x = 94,792.18

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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.