Home / 126,072.50-189,141.15-47,187.86

Finding the Fourth Proportional to 126,072.50, 189,141.15 and 47,187.86

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Solution

The fourth proportional to 126,072.50, 189,141.15 and 47,187.86 is: 70,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,072.50 : 189,141.15 = 47,187.86 : x
  2. Step 2: Convert to fraction form
    126,072.50/189,141.15 = 47,187.86/x
  3. Step 3: Cross multiply
    126,072.50x = 189,141.15 × 47,187.86
  4. Step 4: Simplify right side
    126,072.50x = 8,925,166,106.44
  5. Step 5: Solve for x
    x = 8,925,166,106.44/126,072.50
  6. Step 6: Final answer
    x = 70,793.92

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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.