Home / 102,723.27-141,758.40-57,402.96

Finding the Fourth Proportional to 102,723.27, 141,758.40 and 57,402.96

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Solution

The fourth proportional to 102,723.27, 141,758.40 and 57,402.96 is: 79,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,723.27 : 141,758.40 = 57,402.96 : x
  2. Step 2: Convert to fraction form
    102,723.27/141,758.40 = 57,402.96/x
  3. Step 3: Cross multiply
    102,723.27x = 141,758.40 × 57,402.96
  4. Step 4: Simplify right side
    102,723.27x = 8,137,351,764.86
  5. Step 5: Solve for x
    x = 8,137,351,764.86/102,723.27
  6. Step 6: Final answer
    x = 79,216.25

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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.