Home / 102,734.11-141,778.68-57,412.18

Finding the Fourth Proportional to 102,734.11, 141,778.68 and 57,412.18

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Solution

The fourth proportional to 102,734.11, 141,778.68 and 57,412.18 is: 79,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,734.11 : 141,778.68 = 57,412.18 : x
  2. Step 2: Convert to fraction form
    102,734.11/141,778.68 = 57,412.18/x
  3. Step 3: Cross multiply
    102,734.11x = 141,778.68 × 57,412.18
  4. Step 4: Simplify right side
    102,734.11x = 8,139,823,096.32
  5. Step 5: Solve for x
    x = 8,139,823,096.32/102,734.11
  6. Step 6: Final answer
    x = 79,231.94

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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.