Home / 140,867.68-194,397.01-76,338.70

Finding the Fourth Proportional to 140,867.68, 194,397.01 and 76,338.70

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Solution

The fourth proportional to 140,867.68, 194,397.01 and 76,338.70 is: 105,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,867.68 : 194,397.01 = 76,338.70 : x
  2. Step 2: Convert to fraction form
    140,867.68/194,397.01 = 76,338.70/x
  3. Step 3: Cross multiply
    140,867.68x = 194,397.01 × 76,338.70
  4. Step 4: Simplify right side
    140,867.68x = 14,840,015,027.29
  5. Step 5: Solve for x
    x = 14,840,015,027.29/140,867.68
  6. Step 6: Final answer
    x = 105,347.20

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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.