Home / 107,872.53-161,808.66-28,986.76

Finding the Fourth Proportional to 107,872.53, 161,808.66 and 28,986.76

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Solution

The fourth proportional to 107,872.53, 161,808.66 and 28,986.76 is: 43,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,872.53 : 161,808.66 = 28,986.76 : x
  2. Step 2: Convert to fraction form
    107,872.53/161,808.66 = 28,986.76/x
  3. Step 3: Cross multiply
    107,872.53x = 161,808.66 × 28,986.76
  4. Step 4: Simplify right side
    107,872.53x = 4,690,308,280.12
  5. Step 5: Solve for x
    x = 4,690,308,280.12/107,872.53
  6. Step 6: Final answer
    x = 43,480.10

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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.