Home / 126,114.41-189,227.34-66,128.56

Finding the Fourth Proportional to 126,114.41, 189,227.34 and 66,128.56

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Solution

The fourth proportional to 126,114.41, 189,227.34 and 66,128.56 is: 99,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,114.41 : 189,227.34 = 66,128.56 : x
  2. Step 2: Convert to fraction form
    126,114.41/189,227.34 = 66,128.56/x
  3. Step 3: Cross multiply
    126,114.41x = 189,227.34 × 66,128.56
  4. Step 4: Simplify right side
    126,114.41x = 12,513,331,506.83
  5. Step 5: Solve for x
    x = 12,513,331,506.83/126,114.41
  6. Step 6: Final answer
    x = 99,222.06

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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.