Home / 140,228.82-193,508.10-76,565.16

Finding the Fourth Proportional to 140,228.82, 193,508.10 and 76,565.16

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Solution

The fourth proportional to 140,228.82, 193,508.10 and 76,565.16 is: 105,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,228.82 : 193,508.10 = 76,565.16 : x
  2. Step 2: Convert to fraction form
    140,228.82/193,508.10 = 76,565.16/x
  3. Step 3: Cross multiply
    140,228.82x = 193,508.10 × 76,565.16
  4. Step 4: Simplify right side
    140,228.82x = 14,815,978,637.80
  5. Step 5: Solve for x
    x = 14,815,978,637.80/140,228.82
  6. Step 6: Final answer
    x = 105,655.73

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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.