Home / 126,326.32-189,463.38-47,438.80

Finding the Fourth Proportional to 126,326.32, 189,463.38 and 47,438.80

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Solution

The fourth proportional to 126,326.32, 189,463.38 and 47,438.80 is: 71,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,326.32 : 189,463.38 = 47,438.80 : x
  2. Step 2: Convert to fraction form
    126,326.32/189,463.38 = 47,438.80/x
  3. Step 3: Cross multiply
    126,326.32x = 189,463.38 × 47,438.80
  4. Step 4: Simplify right side
    126,326.32x = 8,987,915,391.14
  5. Step 5: Solve for x
    x = 8,987,915,391.14/126,326.32
  6. Step 6: Final answer
    x = 71,148.40

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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.