Home / 138,552.80-191,202.24-74,890.44

Finding the Fourth Proportional to 138,552.80, 191,202.24 and 74,890.44

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Solution

The fourth proportional to 138,552.80, 191,202.24 and 74,890.44 is: 103,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,552.80 : 191,202.24 = 74,890.44 : x
  2. Step 2: Convert to fraction form
    138,552.80/191,202.24 = 74,890.44/x
  3. Step 3: Cross multiply
    138,552.80x = 191,202.24 × 74,890.44
  4. Step 4: Simplify right side
    138,552.80x = 14,319,219,882.59
  5. Step 5: Solve for x
    x = 14,319,219,882.59/138,552.80
  6. Step 6: Final answer
    x = 103,348.47

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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.