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Finding the Fourth Proportional to 112,399.56, 154,950.49 and 69,350.30

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Solution

The fourth proportional to 112,399.56, 154,950.49 and 69,350.30 is: 95,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,399.56 : 154,950.49 = 69,350.30 : x
  2. Step 2: Convert to fraction form
    112,399.56/154,950.49 = 69,350.30/x
  3. Step 3: Cross multiply
    112,399.56x = 154,950.49 × 69,350.30
  4. Step 4: Simplify right side
    112,399.56x = 10,745,862,966.65
  5. Step 5: Solve for x
    x = 10,745,862,966.65/112,399.56
  6. Step 6: Final answer
    x = 95,604.14

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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.