Home / 107,440.62-148,276.88-69,279.61

Finding the Fourth Proportional to 107,440.62, 148,276.88 and 69,279.61

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Solution

The fourth proportional to 107,440.62, 148,276.88 and 69,279.61 is: 95,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,440.62 : 148,276.88 = 69,279.61 : x
  2. Step 2: Convert to fraction form
    107,440.62/148,276.88 = 69,279.61/x
  3. Step 3: Cross multiply
    107,440.62x = 148,276.88 × 69,279.61
  4. Step 4: Simplify right side
    107,440.62x = 10,272,564,418.42
  5. Step 5: Solve for x
    x = 10,272,564,418.42/107,440.62
  6. Step 6: Final answer
    x = 95,611.55

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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.