Home / 239,114.76-330,137.19-148,605.78

Finding the Fourth Proportional to 239,114.76, 330,137.19 and 148,605.78

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Solution

The fourth proportional to 239,114.76, 330,137.19 and 148,605.78 is: 205,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,114.76 : 330,137.19 = 148,605.78 : x
  2. Step 2: Convert to fraction form
    239,114.76/330,137.19 = 148,605.78/x
  3. Step 3: Cross multiply
    239,114.76x = 330,137.19 × 148,605.78
  4. Step 4: Simplify right side
    239,114.76x = 49,060,294,626.96
  5. Step 5: Solve for x
    x = 49,060,294,626.96/239,114.76
  6. Step 6: Final answer
    x = 205,174.68

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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.