Home / 131,076.66-180,883.62-72,931.22

Finding the Fourth Proportional to 131,076.66, 180,883.62 and 72,931.22

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Solution

The fourth proportional to 131,076.66, 180,883.62 and 72,931.22 is: 100,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,076.66 : 180,883.62 = 72,931.22 : x
  2. Step 2: Convert to fraction form
    131,076.66/180,883.62 = 72,931.22/x
  3. Step 3: Cross multiply
    131,076.66x = 180,883.62 × 72,931.22
  4. Step 4: Simplify right side
    131,076.66x = 13,192,063,084.62
  5. Step 5: Solve for x
    x = 13,192,063,084.62/131,076.66
  6. Step 6: Final answer
    x = 100,643.88

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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.