Home / 126,193.95-189,103.92-51,222.87

Finding the Fourth Proportional to 126,193.95, 189,103.92 and 51,222.87

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Solution

The fourth proportional to 126,193.95, 189,103.92 and 51,222.87 is: 76,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,193.95 : 189,103.92 = 51,222.87 : x
  2. Step 2: Convert to fraction form
    126,193.95/189,103.92 = 51,222.87/x
  3. Step 3: Cross multiply
    126,193.95x = 189,103.92 × 51,222.87
  4. Step 4: Simplify right side
    126,193.95x = 9,686,445,510.65
  5. Step 5: Solve for x
    x = 9,686,445,510.65/126,193.95
  6. Step 6: Final answer
    x = 76,758.40

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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.