Home / 115,422.31-173,188.30-79,938.24

Finding the Fourth Proportional to 115,422.31, 173,188.30 and 79,938.24

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Solution

The fourth proportional to 115,422.31, 173,188.30 and 79,938.24 is: 119,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.31 : 173,188.30 = 79,938.24 : x
  2. Step 2: Convert to fraction form
    115,422.31/173,188.30 = 79,938.24/x
  3. Step 3: Cross multiply
    115,422.31x = 173,188.30 × 79,938.24
  4. Step 4: Simplify right side
    115,422.31x = 13,844,367,890.59
  5. Step 5: Solve for x
    x = 13,844,367,890.59/115,422.31
  6. Step 6: Final answer
    x = 119,945.34

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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.