Home / 131,627.20-181,644.86-71,197.66

Finding the Fourth Proportional to 131,627.20, 181,644.86 and 71,197.66

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Solution

The fourth proportional to 131,627.20, 181,644.86 and 71,197.66 is: 98,252.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,627.20 : 181,644.86 = 71,197.66 : x
  2. Step 2: Convert to fraction form
    131,627.20/181,644.86 = 71,197.66/x
  3. Step 3: Cross multiply
    131,627.20x = 181,644.86 × 71,197.66
  4. Step 4: Simplify right side
    131,627.20x = 12,932,688,983.03
  5. Step 5: Solve for x
    x = 12,932,688,983.03/131,627.20
  6. Step 6: Final answer
    x = 98,252.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.