Home / 126,423.44-189,571.68-42,153.78

Finding the Fourth Proportional to 126,423.44, 189,571.68 and 42,153.78

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Solution

The fourth proportional to 126,423.44, 189,571.68 and 42,153.78 is: 63,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.44 : 189,571.68 = 42,153.78 : x
  2. Step 2: Convert to fraction form
    126,423.44/189,571.68 = 42,153.78/x
  3. Step 3: Cross multiply
    126,423.44x = 189,571.68 × 42,153.78
  4. Step 4: Simplify right side
    126,423.44x = 7,991,162,182.06
  5. Step 5: Solve for x
    x = 7,991,162,182.06/126,423.44
  6. Step 6: Final answer
    x = 63,209.50

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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.