Home / 128,597.24-192,864.87-49,661.12

Finding the Fourth Proportional to 128,597.24, 192,864.87 and 49,661.12

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Solution

The fourth proportional to 128,597.24, 192,864.87 and 49,661.12 is: 74,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,597.24 : 192,864.87 = 49,661.12 : x
  2. Step 2: Convert to fraction form
    128,597.24/192,864.87 = 49,661.12/x
  3. Step 3: Cross multiply
    128,597.24x = 192,864.87 × 49,661.12
  4. Step 4: Simplify right side
    128,597.24x = 9,577,884,488.53
  5. Step 5: Solve for x
    x = 9,577,884,488.53/128,597.24
  6. Step 6: Final answer
    x = 74,479.71

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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.