Home / 121,377.27-182,367.06-78,709.85

Finding the Fourth Proportional to 121,377.27, 182,367.06 and 78,709.85

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Solution

The fourth proportional to 121,377.27, 182,367.06 and 78,709.85 is: 118,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,377.27 : 182,367.06 = 78,709.85 : x
  2. Step 2: Convert to fraction form
    121,377.27/182,367.06 = 78,709.85/x
  3. Step 3: Cross multiply
    121,377.27x = 182,367.06 × 78,709.85
  4. Step 4: Simplify right side
    121,377.27x = 14,354,083,937.54
  5. Step 5: Solve for x
    x = 14,354,083,937.54/121,377.27
  6. Step 6: Final answer
    x = 118,260.07

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1.5x scale

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.