Home / 128,795.76-193,192.68-40,049.10

Finding the Fourth Proportional to 128,795.76, 193,192.68 and 40,049.10

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Solution

The fourth proportional to 128,795.76, 193,192.68 and 40,049.10 is: 60,073.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,795.76 : 193,192.68 = 40,049.10 : x
  2. Step 2: Convert to fraction form
    128,795.76/193,192.68 = 40,049.10/x
  3. Step 3: Cross multiply
    128,795.76x = 193,192.68 × 40,049.10
  4. Step 4: Simplify right side
    128,795.76x = 7,737,192,960.59
  5. Step 5: Solve for x
    x = 7,737,192,960.59/128,795.76
  6. Step 6: Final answer
    x = 60,073.35

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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.