Home / 102,478.60-141,431.34-60,072.76

Finding the Fourth Proportional to 102,478.60, 141,431.34 and 60,072.76

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Solution

The fourth proportional to 102,478.60, 141,431.34 and 60,072.76 is: 82,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,478.60 : 141,431.34 = 60,072.76 : x
  2. Step 2: Convert to fraction form
    102,478.60/141,431.34 = 60,072.76/x
  3. Step 3: Cross multiply
    102,478.60x = 141,431.34 × 60,072.76
  4. Step 4: Simplify right side
    102,478.60x = 8,496,170,944.30
  5. Step 5: Solve for x
    x = 8,496,170,944.30/102,478.60
  6. Step 6: Final answer
    x = 82,906.78

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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.