Home / 126,043.74-189,012.15-47,102.76

Finding the Fourth Proportional to 126,043.74, 189,012.15 and 47,102.76

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Solution

The fourth proportional to 126,043.74, 189,012.15 and 47,102.76 is: 70,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,043.74 : 189,012.15 = 47,102.76 : x
  2. Step 2: Convert to fraction form
    126,043.74/189,012.15 = 47,102.76/x
  3. Step 3: Cross multiply
    126,043.74x = 189,012.15 × 47,102.76
  4. Step 4: Simplify right side
    126,043.74x = 8,902,993,938.53
  5. Step 5: Solve for x
    x = 8,902,993,938.53/126,043.74
  6. Step 6: Final answer
    x = 70,634.16

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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.