Home / 115,719.32-173,354.80-65,647.95

Finding the Fourth Proportional to 115,719.32, 173,354.80 and 65,647.95

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Solution

The fourth proportional to 115,719.32, 173,354.80 and 65,647.95 is: 98,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,719.32 : 173,354.80 = 65,647.95 : x
  2. Step 2: Convert to fraction form
    115,719.32/173,354.80 = 65,647.95/x
  3. Step 3: Cross multiply
    115,719.32x = 173,354.80 × 65,647.95
  4. Step 4: Simplify right side
    115,719.32x = 11,380,387,242.66
  5. Step 5: Solve for x
    x = 11,380,387,242.66/115,719.32
  6. Step 6: Final answer
    x = 98,344.75

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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.