Home / 148,436.56-204,752.64-87,987.88

Finding the Fourth Proportional to 148,436.56, 204,752.64 and 87,987.88

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Solution

The fourth proportional to 148,436.56, 204,752.64 and 87,987.88 is: 121,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,436.56 : 204,752.64 = 87,987.88 : x
  2. Step 2: Convert to fraction form
    148,436.56/204,752.64 = 87,987.88/x
  3. Step 3: Cross multiply
    148,436.56x = 204,752.64 × 87,987.88
  4. Step 4: Simplify right side
    148,436.56x = 18,015,750,718.00
  5. Step 5: Solve for x
    x = 18,015,750,718.00/148,436.56
  6. Step 6: Final answer
    x = 121,370.04

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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.