Home / 102,656.49-141,651.96-57,328.69

Finding the Fourth Proportional to 102,656.49, 141,651.96 and 57,328.69

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Solution

The fourth proportional to 102,656.49, 141,651.96 and 57,328.69 is: 79,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,656.49 : 141,651.96 = 57,328.69 : x
  2. Step 2: Convert to fraction form
    102,656.49/141,651.96 = 57,328.69/x
  3. Step 3: Cross multiply
    102,656.49x = 141,651.96 × 57,328.69
  4. Step 4: Simplify right side
    102,656.49x = 8,120,721,513.54
  5. Step 5: Solve for x
    x = 8,120,721,513.54/102,656.49
  6. Step 6: Final answer
    x = 79,105.78

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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.