Home / 126,050.25-189,074.70-72,707.66

Finding the Fourth Proportional to 126,050.25, 189,074.70 and 72,707.66

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Solution

The fourth proportional to 126,050.25, 189,074.70 and 72,707.66 is: 109,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,050.25 : 189,074.70 = 72,707.66 : x
  2. Step 2: Convert to fraction form
    126,050.25/189,074.70 = 72,707.66/x
  3. Step 3: Cross multiply
    126,050.25x = 189,074.70 × 72,707.66
  4. Step 4: Simplify right side
    126,050.25x = 13,747,179,002.20
  5. Step 5: Solve for x
    x = 13,747,179,002.20/126,050.25
  6. Step 6: Final answer
    x = 109,061.10

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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.