Home / 102,694.55-141,718.46-57,372.55

Finding the Fourth Proportional to 102,694.55, 141,718.46 and 57,372.55

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Solution

The fourth proportional to 102,694.55, 141,718.46 and 57,372.55 is: 79,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,694.55 : 141,718.46 = 57,372.55 : x
  2. Step 2: Convert to fraction form
    102,694.55/141,718.46 = 57,372.55/x
  3. Step 3: Cross multiply
    102,694.55x = 141,718.46 × 57,372.55
  4. Step 4: Simplify right side
    102,694.55x = 8,130,749,432.27
  5. Step 5: Solve for x
    x = 8,130,749,432.27/102,694.55
  6. Step 6: Final answer
    x = 79,174.11

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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.