Home / 140,429.27-193,745.08-79,957.15

Finding the Fourth Proportional to 140,429.27, 193,745.08 and 79,957.15

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Solution

The fourth proportional to 140,429.27, 193,745.08 and 79,957.15 is: 110,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,429.27 : 193,745.08 = 79,957.15 : x
  2. Step 2: Convert to fraction form
    140,429.27/193,745.08 = 79,957.15/x
  3. Step 3: Cross multiply
    140,429.27x = 193,745.08 × 79,957.15
  4. Step 4: Simplify right side
    140,429.27x = 15,491,304,038.91
  5. Step 5: Solve for x
    x = 15,491,304,038.91/140,429.27
  6. Step 6: Final answer
    x = 110,313.92

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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.