Home / 140,355.72-193,691.13-76,692.15

Finding the Fourth Proportional to 140,355.72, 193,691.13 and 76,692.15

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Solution

The fourth proportional to 140,355.72, 193,691.13 and 76,692.15 is: 105,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,355.72 : 193,691.13 = 76,692.15 : x
  2. Step 2: Convert to fraction form
    140,355.72/193,691.13 = 76,692.15/x
  3. Step 3: Cross multiply
    140,355.72x = 193,691.13 × 76,692.15
  4. Step 4: Simplify right side
    140,355.72x = 14,854,589,195.63
  5. Step 5: Solve for x
    x = 14,854,589,195.63/140,355.72
  6. Step 6: Final answer
    x = 105,835.30

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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.