Home / 126,130.80-189,124.20-47,247.60

Finding the Fourth Proportional to 126,130.80, 189,124.20 and 47,247.60

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Solution

The fourth proportional to 126,130.80, 189,124.20 and 47,247.60 is: 70,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130.80 : 189,124.20 = 47,247.60 : x
  2. Step 2: Convert to fraction form
    126,130.80/189,124.20 = 47,247.60/x
  3. Step 3: Cross multiply
    126,130.80x = 189,124.20 × 47,247.60
  4. Step 4: Simplify right side
    126,130.80x = 8,935,664,551.92
  5. Step 5: Solve for x
    x = 8,935,664,551.92/126,130.80
  6. Step 6: Final answer
    x = 70,844.43

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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.