Home / 126,423.61-189,642.69-47,538.52

Finding the Fourth Proportional to 126,423.61, 189,642.69 and 47,538.52

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Solution

The fourth proportional to 126,423.61, 189,642.69 and 47,538.52 is: 71,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.61 : 189,642.69 = 47,538.52 : x
  2. Step 2: Convert to fraction form
    126,423.61/189,642.69 = 47,538.52/x
  3. Step 3: Cross multiply
    126,423.61x = 189,642.69 × 47,538.52
  4. Step 4: Simplify right side
    126,423.61x = 9,015,332,337.31
  5. Step 5: Solve for x
    x = 9,015,332,337.31/126,423.61
  6. Step 6: Final answer
    x = 71,310.51

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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.