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Finding the Fourth Proportional to 126,510.88, 189,759.84 and 37,765.12

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Solution

The fourth proportional to 126,510.88, 189,759.84 and 37,765.12 is: 56,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,510.88 : 189,759.84 = 37,765.12 : x
  2. Step 2: Convert to fraction form
    126,510.88/189,759.84 = 37,765.12/x
  3. Step 3: Cross multiply
    126,510.88x = 189,759.84 × 37,765.12
  4. Step 4: Simplify right side
    126,510.88x = 7,166,303,128.78
  5. Step 5: Solve for x
    x = 7,166,303,128.78/126,510.88
  6. Step 6: Final answer
    x = 56,645.75

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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.