Home / 156,149.51-234,189.24-71,828.69

Finding the Fourth Proportional to 156,149.51, 234,189.24 and 71,828.69

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Solution

The fourth proportional to 156,149.51, 234,189.24 and 71,828.69 is: 107,726.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149.51 : 234,189.24 = 71,828.69 : x
  2. Step 2: Convert to fraction form
    156,149.51/234,189.24 = 71,828.69/x
  3. Step 3: Cross multiply
    156,149.51x = 234,189.24 × 71,828.69
  4. Step 4: Simplify right side
    156,149.51x = 16,821,506,321.30
  5. Step 5: Solve for x
    x = 16,821,506,321.30/156,149.51
  6. Step 6: Final answer
    x = 107,726.92

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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.