Home / 126,191.40-189,283.01-51,291.44

Finding the Fourth Proportional to 126,191.40, 189,283.01 and 51,291.44

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Solution

The fourth proportional to 126,191.40, 189,283.01 and 51,291.44 is: 76,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,191.40 : 189,283.01 = 51,291.44 : x
  2. Step 2: Convert to fraction form
    126,191.40/189,283.01 = 51,291.44/x
  3. Step 3: Cross multiply
    126,191.40x = 189,283.01 × 51,291.44
  4. Step 4: Simplify right side
    126,191.40x = 9,708,596,947.56
  5. Step 5: Solve for x
    x = 9,708,596,947.56/126,191.40
  6. Step 6: Final answer
    x = 76,935.49

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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.