Home / 126,422.27-189,522.07-51,605.30

Finding the Fourth Proportional to 126,422.27, 189,522.07 and 51,605.30

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Solution

The fourth proportional to 126,422.27, 189,522.07 and 51,605.30 is: 77,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,422.27 : 189,522.07 = 51,605.30 : x
  2. Step 2: Convert to fraction form
    126,422.27/189,522.07 = 51,605.30/x
  3. Step 3: Cross multiply
    126,422.27x = 189,522.07 × 51,605.30
  4. Step 4: Simplify right side
    126,422.27x = 9,780,343,278.97
  5. Step 5: Solve for x
    x = 9,780,343,278.97/126,422.27
  6. Step 6: Final answer
    x = 77,362.50

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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.