Home / 128,267.12-192,451.71-49,360.16

Finding the Fourth Proportional to 128,267.12, 192,451.71 and 49,360.16

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Solution

The fourth proportional to 128,267.12, 192,451.71 and 49,360.16 is: 74,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,267.12 : 192,451.71 = 49,360.16 : x
  2. Step 2: Convert to fraction form
    128,267.12/192,451.71 = 49,360.16/x
  3. Step 3: Cross multiply
    128,267.12x = 192,451.71 × 49,360.16
  4. Step 4: Simplify right side
    128,267.12x = 9,499,447,197.87
  5. Step 5: Solve for x
    x = 9,499,447,197.87/128,267.12
  6. Step 6: Final answer
    x = 74,059.88

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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.