Home / 140,159.10-193,419.72-76,496.88

Finding the Fourth Proportional to 140,159.10, 193,419.72 and 76,496.88

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Solution

The fourth proportional to 140,159.10, 193,419.72 and 76,496.88 is: 105,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,159.10 : 193,419.72 = 76,496.88 : x
  2. Step 2: Convert to fraction form
    140,159.10/193,419.72 = 76,496.88/x
  3. Step 3: Cross multiply
    140,159.10x = 193,419.72 × 76,496.88
  4. Step 4: Simplify right side
    140,159.10x = 14,796,005,110.47
  5. Step 5: Solve for x
    x = 14,796,005,110.47/140,159.10
  6. Step 6: Final answer
    x = 105,565.78

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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.