Home / 136,472.68-188,329.76-76,042.04

Finding the Fourth Proportional to 136,472.68, 188,329.76 and 76,042.04

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Solution

The fourth proportional to 136,472.68, 188,329.76 and 76,042.04 is: 104,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,472.68 : 188,329.76 = 76,042.04 : x
  2. Step 2: Convert to fraction form
    136,472.68/188,329.76 = 76,042.04/x
  3. Step 3: Cross multiply
    136,472.68x = 188,329.76 × 76,042.04
  4. Step 4: Simplify right side
    136,472.68x = 14,320,979,143.11
  5. Step 5: Solve for x
    x = 14,320,979,143.11/136,472.68
  6. Step 6: Final answer
    x = 104,936.60

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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.