Home / 107,535.15-161,304.21-40,978.89

Finding the Fourth Proportional to 107,535.15, 161,304.21 and 40,978.89

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Solution

The fourth proportional to 107,535.15, 161,304.21 and 40,978.89 is: 61,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,535.15 : 161,304.21 = 40,978.89 : x
  2. Step 2: Convert to fraction form
    107,535.15/161,304.21 = 40,978.89/x
  3. Step 3: Cross multiply
    107,535.15x = 161,304.21 × 40,978.89
  4. Step 4: Simplify right side
    107,535.15x = 6,610,067,478.13
  5. Step 5: Solve for x
    x = 6,610,067,478.13/107,535.15
  6. Step 6: Final answer
    x = 61,468.90

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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.