Home / 131,761.96-181,831.28-71,332.58

Finding the Fourth Proportional to 131,761.96, 181,831.28 and 71,332.58

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Solution

The fourth proportional to 131,761.96, 181,831.28 and 71,332.58 is: 98,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,761.96 : 181,831.28 = 71,332.58 : x
  2. Step 2: Convert to fraction form
    131,761.96/181,831.28 = 71,332.58/x
  3. Step 3: Cross multiply
    131,761.96x = 181,831.28 × 71,332.58
  4. Step 4: Simplify right side
    131,761.96x = 12,970,494,327.10
  5. Step 5: Solve for x
    x = 12,970,494,327.10/131,761.96
  6. Step 6: Final answer
    x = 98,438.84

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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.