Home / 140,731.32-194,209.52-76,201.24

Finding the Fourth Proportional to 140,731.32, 194,209.52 and 76,201.24

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Solution

The fourth proportional to 140,731.32, 194,209.52 and 76,201.24 is: 105,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,731.32 : 194,209.52 = 76,201.24 : x
  2. Step 2: Convert to fraction form
    140,731.32/194,209.52 = 76,201.24/x
  3. Step 3: Cross multiply
    140,731.32x = 194,209.52 × 76,201.24
  4. Step 4: Simplify right side
    140,731.32x = 14,799,006,243.80
  5. Step 5: Solve for x
    x = 14,799,006,243.80/140,731.32
  6. Step 6: Final answer
    x = 105,157.87

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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.