Home / 112,207.38-154,847.01-61,908.18

Finding the Fourth Proportional to 112,207.38, 154,847.01 and 61,908.18

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Solution

The fourth proportional to 112,207.38, 154,847.01 and 61,908.18 is: 85,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,207.38 : 154,847.01 = 61,908.18 : x
  2. Step 2: Convert to fraction form
    112,207.38/154,847.01 = 61,908.18/x
  3. Step 3: Cross multiply
    112,207.38x = 154,847.01 × 61,908.18
  4. Step 4: Simplify right side
    112,207.38x = 9,586,296,567.54
  5. Step 5: Solve for x
    x = 9,586,296,567.54/112,207.38
  6. Step 6: Final answer
    x = 85,433.74

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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.