Home / 128,335.56-192,504.24-39,587.10

Finding the Fourth Proportional to 128,335.56, 192,504.24 and 39,587.10

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Solution

The fourth proportional to 128,335.56, 192,504.24 and 39,587.10 is: 59,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335.56 : 192,504.24 = 39,587.10 : x
  2. Step 2: Convert to fraction form
    128,335.56/192,504.24 = 39,587.10/x
  3. Step 3: Cross multiply
    128,335.56x = 192,504.24 × 39,587.10
  4. Step 4: Simplify right side
    128,335.56x = 7,620,684,599.30
  5. Step 5: Solve for x
    x = 7,620,684,599.30/128,335.56
  6. Step 6: Final answer
    x = 59,380.93

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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.