Home / 148,359.47-204,722.82-87,919.88

Finding the Fourth Proportional to 148,359.47, 204,722.82 and 87,919.88

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Solution

The fourth proportional to 148,359.47, 204,722.82 and 87,919.88 is: 121,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,359.47 : 204,722.82 = 87,919.88 : x
  2. Step 2: Convert to fraction form
    148,359.47/204,722.82 = 87,919.88/x
  3. Step 3: Cross multiply
    148,359.47x = 204,722.82 × 87,919.88
  4. Step 4: Simplify right side
    148,359.47x = 17,999,204,744.05
  5. Step 5: Solve for x
    x = 17,999,204,744.05/148,359.47
  6. Step 6: Final answer
    x = 121,321.58

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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.