Home / 115,380.45-159,217.25-66,323.61

Finding the Fourth Proportional to 115,380.45, 159,217.25 and 66,323.61

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Solution

The fourth proportional to 115,380.45, 159,217.25 and 66,323.61 is: 91,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,380.45 : 159,217.25 = 66,323.61 : x
  2. Step 2: Convert to fraction form
    115,380.45/159,217.25 = 66,323.61/x
  3. Step 3: Cross multiply
    115,380.45x = 159,217.25 × 66,323.61
  4. Step 4: Simplify right side
    115,380.45x = 10,559,862,462.65
  5. Step 5: Solve for x
    x = 10,559,862,462.65/115,380.45
  6. Step 6: Final answer
    x = 91,522.11

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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.