Home / 140,034.64-193,245.85-76,372.42

Finding the Fourth Proportional to 140,034.64, 193,245.85 and 76,372.42

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Solution

The fourth proportional to 140,034.64, 193,245.85 and 76,372.42 is: 105,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,034.64 : 193,245.85 = 76,372.42 : x
  2. Step 2: Convert to fraction form
    140,034.64/193,245.85 = 76,372.42/x
  3. Step 3: Cross multiply
    140,034.64x = 193,245.85 × 76,372.42
  4. Step 4: Simplify right side
    140,034.64x = 14,758,653,219.46
  5. Step 5: Solve for x
    x = 14,758,653,219.46/140,034.64
  6. Step 6: Final answer
    x = 105,392.87

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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.