Home / 80,516.40-121,256.80-73,333.92

Finding the Fourth Proportional to 80,516.40, 121,256.80 and 73,333.92

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Solution

The fourth proportional to 80,516.40, 121,256.80 and 73,333.92 is: 110,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,516.40 : 121,256.80 = 73,333.92 : x
  2. Step 2: Convert to fraction form
    80,516.40/121,256.80 = 73,333.92/x
  3. Step 3: Cross multiply
    80,516.40x = 121,256.80 × 73,333.92
  4. Step 4: Simplify right side
    80,516.40x = 8,892,236,470.66
  5. Step 5: Solve for x
    x = 8,892,236,470.66/80,516.40
  6. Step 6: Final answer
    x = 110,440.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.