Home / 102,679.20-141,621.48-64,917

Finding the Fourth Proportional to 102,679.20, 141,621.48 and 64,917

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Solution

The fourth proportional to 102,679.20, 141,621.48 and 64,917 is: 89,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,679.20 : 141,621.48 = 64,917 : x
  2. Step 2: Convert to fraction form
    102,679.20/141,621.48 = 64,917/x
  3. Step 3: Cross multiply
    102,679.20x = 141,621.48 × 64,917
  4. Step 4: Simplify right side
    102,679.20x = 9,193,641,617.16
  5. Step 5: Solve for x
    x = 9,193,641,617.16/102,679.20
  6. Step 6: Final answer
    x = 89,537.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.