Home / 115,724.79-173,512.13-76,161.69

Finding the Fourth Proportional to 115,724.79, 173,512.13 and 76,161.69

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Solution

The fourth proportional to 115,724.79, 173,512.13 and 76,161.69 is: 114,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,724.79 : 173,512.13 = 76,161.69 : x
  2. Step 2: Convert to fraction form
    115,724.79/173,512.13 = 76,161.69/x
  3. Step 3: Cross multiply
    115,724.79x = 173,512.13 × 76,161.69
  4. Step 4: Simplify right side
    115,724.79x = 13,214,976,675.49
  5. Step 5: Solve for x
    x = 13,214,976,675.49/115,724.79
  6. Step 6: Final answer
    x = 114,193.14

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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.