Home / 102,861.10-141,961.46-57,541.60

Finding the Fourth Proportional to 102,861.10, 141,961.46 and 57,541.60

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Solution

The fourth proportional to 102,861.10, 141,961.46 and 57,541.60 is: 79,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,861.10 : 141,961.46 = 57,541.60 : x
  2. Step 2: Convert to fraction form
    102,861.10/141,961.46 = 57,541.60/x
  3. Step 3: Cross multiply
    102,861.10x = 141,961.46 × 57,541.60
  4. Step 4: Simplify right side
    102,861.10x = 8,168,689,546.74
  5. Step 5: Solve for x
    x = 8,168,689,546.74/102,861.10
  6. Step 6: Final answer
    x = 79,414.76

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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.