Home / 195,639.12-293,489.46-77,311.08

Finding the Fourth Proportional to 195,639.12, 293,489.46 and 77,311.08

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Solution

The fourth proportional to 195,639.12, 293,489.46 and 77,311.08 is: 115,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,639.12 : 293,489.46 = 77,311.08 : x
  2. Step 2: Convert to fraction form
    195,639.12/293,489.46 = 77,311.08/x
  3. Step 3: Cross multiply
    195,639.12x = 293,489.46 × 77,311.08
  4. Step 4: Simplify right side
    195,639.12x = 22,689,987,121.22
  5. Step 5: Solve for x
    x = 22,689,987,121.22/195,639.12
  6. Step 6: Final answer
    x = 115,978.78

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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.