Home / 134,869.38-186,182.73-78,269.82

Finding the Fourth Proportional to 134,869.38, 186,182.73 and 78,269.82

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Solution

The fourth proportional to 134,869.38, 186,182.73 and 78,269.82 is: 108,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,869.38 : 186,182.73 = 78,269.82 : x
  2. Step 2: Convert to fraction form
    134,869.38/186,182.73 = 78,269.82/x
  3. Step 3: Cross multiply
    134,869.38x = 186,182.73 × 78,269.82
  4. Step 4: Simplify right side
    134,869.38x = 14,572,488,764.21
  5. Step 5: Solve for x
    x = 14,572,488,764.21/134,869.38
  6. Step 6: Final answer
    x = 108,048.90

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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.