Home / 189,211.19-261,104.85-104,327.64

Finding the Fourth Proportional to 189,211.19, 261,104.85 and 104,327.64

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Solution

The fourth proportional to 189,211.19, 261,104.85 and 104,327.64 is: 143,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,211.19 : 261,104.85 = 104,327.64 : x
  2. Step 2: Convert to fraction form
    189,211.19/261,104.85 = 104,327.64/x
  3. Step 3: Cross multiply
    189,211.19x = 261,104.85 × 104,327.64
  4. Step 4: Simplify right side
    189,211.19x = 27,240,452,793.05
  5. Step 5: Solve for x
    x = 27,240,452,793.05/189,211.19
  6. Step 6: Final answer
    x = 143,968.51

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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.