Home / 147,788.88-203,949.46-80,720.88

Finding the Fourth Proportional to 147,788.88, 203,949.46 and 80,720.88

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Solution

The fourth proportional to 147,788.88, 203,949.46 and 80,720.88 is: 111,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,788.88 : 203,949.46 = 80,720.88 : x
  2. Step 2: Convert to fraction form
    147,788.88/203,949.46 = 80,720.88/x
  3. Step 3: Cross multiply
    147,788.88x = 203,949.46 × 80,720.88
  4. Step 4: Simplify right side
    147,788.88x = 16,462,979,886.72
  5. Step 5: Solve for x
    x = 16,462,979,886.72/147,788.88
  6. Step 6: Final answer
    x = 111,395.25

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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.