Home / 140,134.59-193,391.54-79,715.88

Finding the Fourth Proportional to 140,134.59, 193,391.54 and 79,715.88

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Solution

The fourth proportional to 140,134.59, 193,391.54 and 79,715.88 is: 110,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,134.59 : 193,391.54 = 79,715.88 : x
  2. Step 2: Convert to fraction form
    140,134.59/193,391.54 = 79,715.88/x
  3. Step 3: Cross multiply
    140,134.59x = 193,391.54 × 79,715.88
  4. Step 4: Simplify right side
    140,134.59x = 15,416,376,795.66
  5. Step 5: Solve for x
    x = 15,416,376,795.66/140,134.59
  6. Step 6: Final answer
    x = 110,011.22

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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.