Home / 126,454.20-189,676.83-31,685.19

Finding the Fourth Proportional to 126,454.20, 189,676.83 and 31,685.19

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Solution

The fourth proportional to 126,454.20, 189,676.83 and 31,685.19 is: 47,526.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,454.20 : 189,676.83 = 31,685.19 : x
  2. Step 2: Convert to fraction form
    126,454.20/189,676.83 = 31,685.19/x
  3. Step 3: Cross multiply
    126,454.20x = 189,676.83 × 31,685.19
  4. Step 4: Simplify right side
    126,454.20x = 6,009,946,397.15
  5. Step 5: Solve for x
    x = 6,009,946,397.15/126,454.20
  6. Step 6: Final answer
    x = 47,526.66

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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.