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Finding the Fourth Proportional to 189,082.50, 260,939.34 and 104,205.12

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Solution

The fourth proportional to 189,082.50, 260,939.34 and 104,205.12 is: 143,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,082.50 : 260,939.34 = 104,205.12 : x
  2. Step 2: Convert to fraction form
    189,082.50/260,939.34 = 104,205.12/x
  3. Step 3: Cross multiply
    189,082.50x = 260,939.34 × 104,205.12
  4. Step 4: Simplify right side
    189,082.50x = 27,191,215,237.42
  5. Step 5: Solve for x
    x = 27,191,215,237.42/189,082.50
  6. Step 6: Final answer
    x = 143,806.09

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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.