Home / 181,778.15-272,536-76,539.71

Finding the Fourth Proportional to 181,778.15, 272,536 and 76,539.71

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Solution

The fourth proportional to 181,778.15, 272,536 and 76,539.71 is: 114,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,778.15 : 272,536 = 76,539.71 : x
  2. Step 2: Convert to fraction form
    181,778.15/272,536 = 76,539.71/x
  3. Step 3: Cross multiply
    181,778.15x = 272,536 × 76,539.71
  4. Step 4: Simplify right side
    181,778.15x = 20,859,826,404.56
  5. Step 5: Solve for x
    x = 20,859,826,404.56/181,778.15
  6. Step 6: Final answer
    x = 114,754.31

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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.