Home / 115,983.59-173,680.04-76,420.76

Finding the Fourth Proportional to 115,983.59, 173,680.04 and 76,420.76

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Solution

The fourth proportional to 115,983.59, 173,680.04 and 76,420.76 is: 114,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,983.59 : 173,680.04 = 76,420.76 : x
  2. Step 2: Convert to fraction form
    115,983.59/173,680.04 = 76,420.76/x
  3. Step 3: Cross multiply
    115,983.59x = 173,680.04 × 76,420.76
  4. Step 4: Simplify right side
    115,983.59x = 13,272,759,403.13
  5. Step 5: Solve for x
    x = 13,272,759,403.13/115,983.59
  6. Step 6: Final answer
    x = 114,436.53

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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.