Home / 126,120.93-189,175.92-31,349.10

Finding the Fourth Proportional to 126,120.93, 189,175.92 and 31,349.10

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Solution

The fourth proportional to 126,120.93, 189,175.92 and 31,349.10 is: 47,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.93 : 189,175.92 = 31,349.10 : x
  2. Step 2: Convert to fraction form
    126,120.93/189,175.92 = 31,349.10/x
  3. Step 3: Cross multiply
    126,120.93x = 189,175.92 × 31,349.10
  4. Step 4: Simplify right side
    126,120.93x = 5,930,495,601.86
  5. Step 5: Solve for x
    x = 5,930,495,601.86/126,120.93
  6. Step 6: Final answer
    x = 47,022.30

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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.