Home / 128,851.56-193,295.58-40,114.04

Finding the Fourth Proportional to 128,851.56, 193,295.58 and 40,114.04

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Solution

The fourth proportional to 128,851.56, 193,295.58 and 40,114.04 is: 60,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,851.56 : 193,295.58 = 40,114.04 : x
  2. Step 2: Convert to fraction form
    128,851.56/193,295.58 = 40,114.04/x
  3. Step 3: Cross multiply
    128,851.56x = 193,295.58 × 40,114.04
  4. Step 4: Simplify right side
    128,851.56x = 7,753,866,627.94
  5. Step 5: Solve for x
    x = 7,753,866,627.94/128,851.56
  6. Step 6: Final answer
    x = 60,176.74

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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.