Home / 102,380.85-141,283.44-57,058.65

Finding the Fourth Proportional to 102,380.85, 141,283.44 and 57,058.65

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Solution

The fourth proportional to 102,380.85, 141,283.44 and 57,058.65 is: 78,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,380.85 : 141,283.44 = 57,058.65 : x
  2. Step 2: Convert to fraction form
    102,380.85/141,283.44 = 57,058.65/x
  3. Step 3: Cross multiply
    102,380.85x = 141,283.44 × 57,058.65
  4. Step 4: Simplify right side
    102,380.85x = 8,061,442,353.76
  5. Step 5: Solve for x
    x = 8,061,442,353.76/102,380.85
  6. Step 6: Final answer
    x = 78,739.75

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1.5x scale

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.