Home / 203,985.60-281,454.12-123,411.12

Finding the Fourth Proportional to 203,985.60, 281,454.12 and 123,411.12

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Solution

The fourth proportional to 203,985.60, 281,454.12 and 123,411.12 is: 170,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,985.60 : 281,454.12 = 123,411.12 : x
  2. Step 2: Convert to fraction form
    203,985.60/281,454.12 = 123,411.12/x
  3. Step 3: Cross multiply
    203,985.60x = 281,454.12 × 123,411.12
  4. Step 4: Simplify right side
    203,985.60x = 34,734,568,177.81
  5. Step 5: Solve for x
    x = 34,734,568,177.81/203,985.60
  6. Step 6: Final answer
    x = 170,279.51

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1.5x scale

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.