Home / 107,437.20-161,155.62-28,551.42

Finding the Fourth Proportional to 107,437.20, 161,155.62 and 28,551.42

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Solution

The fourth proportional to 107,437.20, 161,155.62 and 28,551.42 is: 42,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,437.20 : 161,155.62 = 28,551.42 : x
  2. Step 2: Convert to fraction form
    107,437.20/161,155.62 = 28,551.42/x
  3. Step 3: Cross multiply
    107,437.20x = 161,155.62 × 28,551.42
  4. Step 4: Simplify right side
    107,437.20x = 4,601,221,791.98
  5. Step 5: Solve for x
    x = 4,601,221,791.98/107,437.20
  6. Step 6: Final answer
    x = 42,827.08

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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.