Home / 140,701.79-194,338.91-102,400.61

Finding the Fourth Proportional to 140,701.79, 194,338.91 and 102,400.61

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Solution

The fourth proportional to 140,701.79, 194,338.91 and 102,400.61 is: 141,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,701.79 : 194,338.91 = 102,400.61 : x
  2. Step 2: Convert to fraction form
    140,701.79/194,338.91 = 102,400.61/x
  3. Step 3: Cross multiply
    140,701.79x = 194,338.91 × 102,400.61
  4. Step 4: Simplify right side
    140,701.79x = 19,900,422,215.04
  5. Step 5: Solve for x
    x = 19,900,422,215.04/140,701.79
  6. Step 6: Final answer
    x = 141,436.88

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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.