Home / 80,113.32-120,186.19-35,740.07

Finding the Fourth Proportional to 80,113.32, 120,186.19 and 35,740.07

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Solution

The fourth proportional to 80,113.32, 120,186.19 and 35,740.07 is: 53,617.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,113.32 : 120,186.19 = 35,740.07 : x
  2. Step 2: Convert to fraction form
    80,113.32/120,186.19 = 35,740.07/x
  3. Step 3: Cross multiply
    80,113.32x = 120,186.19 × 35,740.07
  4. Step 4: Simplify right side
    80,113.32x = 4,295,463,414.12
  5. Step 5: Solve for x
    x = 4,295,463,414.12/80,113.32
  6. Step 6: Final answer
    x = 53,617.34

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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.