Home / 147,656.82-203,763.57-80,589.30

Finding the Fourth Proportional to 147,656.82, 203,763.57 and 80,589.30

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Solution

The fourth proportional to 147,656.82, 203,763.57 and 80,589.30 is: 111,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,656.82 : 203,763.57 = 80,589.30 : x
  2. Step 2: Convert to fraction form
    147,656.82/203,763.57 = 80,589.30/x
  3. Step 3: Cross multiply
    147,656.82x = 203,763.57 × 80,589.30
  4. Step 4: Simplify right side
    147,656.82x = 16,421,163,471.80
  5. Step 5: Solve for x
    x = 16,421,163,471.80/147,656.82
  6. Step 6: Final answer
    x = 111,211.68

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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.