Home / 128,115.27-176,793.44-71,525.43

Finding the Fourth Proportional to 128,115.27, 176,793.44 and 71,525.43

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Solution

The fourth proportional to 128,115.27, 176,793.44 and 71,525.43 is: 98,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,115.27 : 176,793.44 = 71,525.43 : x
  2. Step 2: Convert to fraction form
    128,115.27/176,793.44 = 71,525.43/x
  3. Step 3: Cross multiply
    128,115.27x = 176,793.44 × 71,525.43
  4. Step 4: Simplify right side
    128,115.27x = 12,645,226,459.55
  5. Step 5: Solve for x
    x = 12,645,226,459.55/128,115.27
  6. Step 6: Final answer
    x = 98,701.95

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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.