Home / 128,164.20-192,188.70-49,252.20

Finding the Fourth Proportional to 128,164.20, 192,188.70 and 49,252.20

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Solution

The fourth proportional to 128,164.20, 192,188.70 and 49,252.20 is: 73,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,164.20 : 192,188.70 = 49,252.20 : x
  2. Step 2: Convert to fraction form
    128,164.20/192,188.70 = 49,252.20/x
  3. Step 3: Cross multiply
    128,164.20x = 192,188.70 × 49,252.20
  4. Step 4: Simplify right side
    128,164.20x = 9,465,716,290.14
  5. Step 5: Solve for x
    x = 9,465,716,290.14/128,164.20
  6. Step 6: Final answer
    x = 73,856.16

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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.