Home / 128,056.74-192,085.11-49,127.88

Finding the Fourth Proportional to 128,056.74, 192,085.11 and 49,127.88

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Solution

The fourth proportional to 128,056.74, 192,085.11 and 49,127.88 is: 73,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,056.74 : 192,085.11 = 49,127.88 : x
  2. Step 2: Convert to fraction form
    128,056.74/192,085.11 = 49,127.88/x
  3. Step 3: Cross multiply
    128,056.74x = 192,085.11 × 49,127.88
  4. Step 4: Simplify right side
    128,056.74x = 9,436,734,233.87
  5. Step 5: Solve for x
    x = 9,436,734,233.87/128,056.74
  6. Step 6: Final answer
    x = 73,691.82

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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.