Home / 123,438.28-185,120.16-39,195.04

Finding the Fourth Proportional to 123,438.28, 185,120.16 and 39,195.04

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Solution

The fourth proportional to 123,438.28, 185,120.16 and 39,195.04 is: 58,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,438.28 : 185,120.16 = 39,195.04 : x
  2. Step 2: Convert to fraction form
    123,438.28/185,120.16 = 39,195.04/x
  3. Step 3: Cross multiply
    123,438.28x = 185,120.16 × 39,195.04
  4. Step 4: Simplify right side
    123,438.28x = 7,255,792,076.01
  5. Step 5: Solve for x
    x = 7,255,792,076.01/123,438.28
  6. Step 6: Final answer
    x = 58,780.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.