Home / 140,658.12-194,110.50-79,407.54

Finding the Fourth Proportional to 140,658.12, 194,110.50 and 79,407.54

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Solution

The fourth proportional to 140,658.12, 194,110.50 and 79,407.54 is: 109,583.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,658.12 : 194,110.50 = 79,407.54 : x
  2. Step 2: Convert to fraction form
    140,658.12/194,110.50 = 79,407.54/x
  3. Step 3: Cross multiply
    140,658.12x = 194,110.50 × 79,407.54
  4. Step 4: Simplify right side
    140,658.12x = 15,413,837,293.17
  5. Step 5: Solve for x
    x = 15,413,837,293.17/140,658.12
  6. Step 6: Final answer
    x = 109,583.70

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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.