Home / 156,987.70-235,479.66-38,660.20

Finding the Fourth Proportional to 156,987.70, 235,479.66 and 38,660.20

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Solution

The fourth proportional to 156,987.70, 235,479.66 and 38,660.20 is: 57,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.70 : 235,479.66 = 38,660.20 : x
  2. Step 2: Convert to fraction form
    156,987.70/235,479.66 = 38,660.20/x
  3. Step 3: Cross multiply
    156,987.70x = 235,479.66 × 38,660.20
  4. Step 4: Simplify right side
    156,987.70x = 9,103,690,751.53
  5. Step 5: Solve for x
    x = 9,103,690,751.53/156,987.70
  6. Step 6: Final answer
    x = 57,989.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.