Home / 167,439.56-231,069.11-90,960.17

Finding the Fourth Proportional to 167,439.56, 231,069.11 and 90,960.17

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Solution

The fourth proportional to 167,439.56, 231,069.11 and 90,960.17 is: 125,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,439.56 : 231,069.11 = 90,960.17 : x
  2. Step 2: Convert to fraction form
    167,439.56/231,069.11 = 90,960.17/x
  3. Step 3: Cross multiply
    167,439.56x = 231,069.11 × 90,960.17
  4. Step 4: Simplify right side
    167,439.56x = 21,018,083,917.20
  5. Step 5: Solve for x
    x = 21,018,083,917.20/167,439.56
  6. Step 6: Final answer
    x = 125,526.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.