Home / 156,500.32-234,349.80-86,301.76

Finding the Fourth Proportional to 156,500.32, 234,349.80 and 86,301.76

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Solution

The fourth proportional to 156,500.32, 234,349.80 and 86,301.76 is: 129,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,500.32 : 234,349.80 = 86,301.76 : x
  2. Step 2: Convert to fraction form
    156,500.32/234,349.80 = 86,301.76/x
  3. Step 3: Cross multiply
    156,500.32x = 234,349.80 × 86,301.76
  4. Step 4: Simplify right side
    156,500.32x = 20,224,800,195.65
  5. Step 5: Solve for x
    x = 20,224,800,195.65/156,500.32
  6. Step 6: Final answer
    x = 129,231.69

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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.