Home / 110,640.41-152,660.88-64,691.20

Finding the Fourth Proportional to 110,640.41, 152,660.88 and 64,691.20

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Solution

The fourth proportional to 110,640.41, 152,660.88 and 64,691.20 is: 89,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,640.41 : 152,660.88 = 64,691.20 : x
  2. Step 2: Convert to fraction form
    110,640.41/152,660.88 = 64,691.20/x
  3. Step 3: Cross multiply
    110,640.41x = 152,660.88 × 64,691.20
  4. Step 4: Simplify right side
    110,640.41x = 9,875,815,711.08
  5. Step 5: Solve for x
    x = 9,875,815,711.08/110,640.41
  6. Step 6: Final answer
    x = 89,260.48

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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.