Home / 125,520.11-173,218.88-68,931.89

Finding the Fourth Proportional to 125,520.11, 173,218.88 and 68,931.89

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Solution

The fourth proportional to 125,520.11, 173,218.88 and 68,931.89 is: 95,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,520.11 : 173,218.88 = 68,931.89 : x
  2. Step 2: Convert to fraction form
    125,520.11/173,218.88 = 68,931.89/x
  3. Step 3: Cross multiply
    125,520.11x = 173,218.88 × 68,931.89
  4. Step 4: Simplify right side
    125,520.11x = 11,940,304,782.08
  5. Step 5: Solve for x
    x = 11,940,304,782.08/125,520.11
  6. Step 6: Final answer
    x = 95,126.63

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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.