Home / 121,439.64-182,115.74-51,324.42

Finding the Fourth Proportional to 121,439.64, 182,115.74 and 51,324.42

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Solution

The fourth proportional to 121,439.64, 182,115.74 and 51,324.42 is: 76,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,439.64 : 182,115.74 = 51,324.42 : x
  2. Step 2: Convert to fraction form
    121,439.64/182,115.74 = 51,324.42/x
  3. Step 3: Cross multiply
    121,439.64x = 182,115.74 × 51,324.42
  4. Step 4: Simplify right side
    121,439.64x = 9,346,984,471.75
  5. Step 5: Solve for x
    x = 9,346,984,471.75/121,439.64
  6. Step 6: Final answer
    x = 76,968.15

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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.