Home / 126,040.42-189,139.50-51,160.60

Finding the Fourth Proportional to 126,040.42, 189,139.50 and 51,160.60

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Solution

The fourth proportional to 126,040.42, 189,139.50 and 51,160.60 is: 76,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,040.42 : 189,139.50 = 51,160.60 : x
  2. Step 2: Convert to fraction form
    126,040.42/189,139.50 = 51,160.60/x
  3. Step 3: Cross multiply
    126,040.42x = 189,139.50 × 51,160.60
  4. Step 4: Simplify right side
    126,040.42x = 9,676,490,303.70
  5. Step 5: Solve for x
    x = 9,676,490,303.70/126,040.42
  6. Step 6: Final answer
    x = 76,772.91

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1.5x scale

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.