Home / 128,055.24-192,082.86-49,126.38

Finding the Fourth Proportional to 128,055.24, 192,082.86 and 49,126.38

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Solution

The fourth proportional to 128,055.24, 192,082.86 and 49,126.38 is: 73,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,055.24 : 192,082.86 = 49,126.38 : x
  2. Step 2: Convert to fraction form
    128,055.24/192,082.86 = 49,126.38/x
  3. Step 3: Cross multiply
    128,055.24x = 192,082.86 × 49,126.38
  4. Step 4: Simplify right side
    128,055.24x = 9,436,335,571.85
  5. Step 5: Solve for x
    x = 9,436,335,571.85/128,055.24
  6. Step 6: Final answer
    x = 73,689.57

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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.