Home / 126,100.92-189,130.56-51,218.04

Finding the Fourth Proportional to 126,100.92, 189,130.56 and 51,218.04

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Solution

The fourth proportional to 126,100.92, 189,130.56 and 51,218.04 is: 76,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,100.92 : 189,130.56 = 51,218.04 : x
  2. Step 2: Convert to fraction form
    126,100.92/189,130.56 = 51,218.04/x
  3. Step 3: Cross multiply
    126,100.92x = 189,130.56 × 51,218.04
  4. Step 4: Simplify right side
    126,100.92x = 9,686,896,587.30
  5. Step 5: Solve for x
    x = 9,686,896,587.30/126,100.92
  6. Step 6: Final answer
    x = 76,818.60

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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.