Home / 148,691.36-205,188.54-80,706.88

Finding the Fourth Proportional to 148,691.36, 205,188.54 and 80,706.88

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Solution

The fourth proportional to 148,691.36, 205,188.54 and 80,706.88 is: 111,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,691.36 : 205,188.54 = 80,706.88 : x
  2. Step 2: Convert to fraction form
    148,691.36/205,188.54 = 80,706.88/x
  3. Step 3: Cross multiply
    148,691.36x = 205,188.54 × 80,706.88
  4. Step 4: Simplify right side
    148,691.36x = 16,560,126,875.16
  5. Step 5: Solve for x
    x = 16,560,126,875.16/148,691.36
  6. Step 6: Final answer
    x = 111,372.49

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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.