Home / 156,147.47-234,186.13-71,826.65

Finding the Fourth Proportional to 156,147.47, 234,186.13 and 71,826.65

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Solution

The fourth proportional to 156,147.47, 234,186.13 and 71,826.65 is: 107,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,147.47 : 234,186.13 = 71,826.65 : x
  2. Step 2: Convert to fraction form
    156,147.47/234,186.13 = 71,826.65/x
  3. Step 3: Cross multiply
    156,147.47x = 234,186.13 × 71,826.65
  4. Step 4: Simplify right side
    156,147.47x = 16,820,803,664.30
  5. Step 5: Solve for x
    x = 16,820,803,664.30/156,147.47
  6. Step 6: Final answer
    x = 107,723.83

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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.