Home / 102,621.20-141,615.92-57,299.96

Finding the Fourth Proportional to 102,621.20, 141,615.92 and 57,299.96

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Solution

The fourth proportional to 102,621.20, 141,615.92 and 57,299.96 is: 79,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621.20 : 141,615.92 = 57,299.96 : x
  2. Step 2: Convert to fraction form
    102,621.20/141,615.92 = 57,299.96/x
  3. Step 3: Cross multiply
    102,621.20x = 141,615.92 × 57,299.96
  4. Step 4: Simplify right side
    102,621.20x = 8,114,586,090.91
  5. Step 5: Solve for x
    x = 8,114,586,090.91/102,621.20
  6. Step 6: Final answer
    x = 79,073.19

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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.