Home / 121,764.20-167,925.79-76,446.41

Finding the Fourth Proportional to 121,764.20, 167,925.79 and 76,446.41

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Solution

The fourth proportional to 121,764.20, 167,925.79 and 76,446.41 is: 105,427.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,764.20 : 167,925.79 = 76,446.41 : x
  2. Step 2: Convert to fraction form
    121,764.20/167,925.79 = 76,446.41/x
  3. Step 3: Cross multiply
    121,764.20x = 167,925.79 × 76,446.41
  4. Step 4: Simplify right side
    121,764.20x = 12,837,323,791.91
  5. Step 5: Solve for x
    x = 12,837,323,791.91/121,764.20
  6. Step 6: Final answer
    x = 105,427.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.