Home / 123,665.40-185,436.68-39,414.60

Finding the Fourth Proportional to 123,665.40, 185,436.68 and 39,414.60

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Solution

The fourth proportional to 123,665.40, 185,436.68 and 39,414.60 is: 59,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,665.40 : 185,436.68 = 39,414.60 : x
  2. Step 2: Convert to fraction form
    123,665.40/185,436.68 = 39,414.60/x
  3. Step 3: Cross multiply
    123,665.40x = 185,436.68 × 39,414.60
  4. Step 4: Simplify right side
    123,665.40x = 7,308,912,370.46
  5. Step 5: Solve for x
    x = 7,308,912,370.46/123,665.40
  6. Step 6: Final answer
    x = 59,102.32

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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.