Home / 84,151.16-126,317.73-74,850.74

Finding the Fourth Proportional to 84,151.16, 126,317.73 and 74,850.74

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Solution

The fourth proportional to 84,151.16, 126,317.73 and 74,850.74 is: 112,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,151.16 : 126,317.73 = 74,850.74 : x
  2. Step 2: Convert to fraction form
    84,151.16/126,317.73 = 74,850.74/x
  3. Step 3: Cross multiply
    84,151.16x = 126,317.73 × 74,850.74
  4. Step 4: Simplify right side
    84,151.16x = 9,454,975,565.62
  5. Step 5: Solve for x
    x = 9,454,975,565.62/84,151.16
  6. Step 6: Final answer
    x = 112,357.04

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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.