Home / 102,436.56-141,370.92-57,108.42

Finding the Fourth Proportional to 102,436.56, 141,370.92 and 57,108.42

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Solution

The fourth proportional to 102,436.56, 141,370.92 and 57,108.42 is: 78,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,436.56 : 141,370.92 = 57,108.42 : x
  2. Step 2: Convert to fraction form
    102,436.56/141,370.92 = 57,108.42/x
  3. Step 3: Cross multiply
    102,436.56x = 141,370.92 × 57,108.42
  4. Step 4: Simplify right side
    102,436.56x = 8,073,469,875.15
  5. Step 5: Solve for x
    x = 8,073,469,875.15/102,436.56
  6. Step 6: Final answer
    x = 78,814.34

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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.