Home / 121,854.24-182,688.72-84,314.52

Finding the Fourth Proportional to 121,854.24, 182,688.72 and 84,314.52

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Solution

The fourth proportional to 121,854.24, 182,688.72 and 84,314.52 is: 126,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,854.24 : 182,688.72 = 84,314.52 : x
  2. Step 2: Convert to fraction form
    121,854.24/182,688.72 = 84,314.52/x
  3. Step 3: Cross multiply
    121,854.24x = 182,688.72 × 84,314.52
  4. Step 4: Simplify right side
    121,854.24x = 15,403,311,736.21
  5. Step 5: Solve for x
    x = 15,403,311,736.21/121,854.24
  6. Step 6: Final answer
    x = 126,407.68

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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.