Home / 103,462.15-155,301.82-91,691.23

Finding the Fourth Proportional to 103,462.15, 155,301.82 and 91,691.23

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Solution

The fourth proportional to 103,462.15, 155,301.82 and 91,691.23 is: 137,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,462.15 : 155,301.82 = 91,691.23 : x
  2. Step 2: Convert to fraction form
    103,462.15/155,301.82 = 91,691.23/x
  3. Step 3: Cross multiply
    103,462.15x = 155,301.82 × 91,691.23
  4. Step 4: Simplify right side
    103,462.15x = 14,239,814,438.58
  5. Step 5: Solve for x
    x = 14,239,814,438.58/103,462.15
  6. Step 6: Final answer
    x = 137,633.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.