Home / 115,961.10-173,812.05-66,065.10

Finding the Fourth Proportional to 115,961.10, 173,812.05 and 66,065.10

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Solution

The fourth proportional to 115,961.10, 173,812.05 and 66,065.10 is: 99,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,961.10 : 173,812.05 = 66,065.10 : x
  2. Step 2: Convert to fraction form
    115,961.10/173,812.05 = 66,065.10/x
  3. Step 3: Cross multiply
    115,961.10x = 173,812.05 × 66,065.10
  4. Step 4: Simplify right side
    115,961.10x = 11,482,910,464.46
  5. Step 5: Solve for x
    x = 11,482,910,464.46/115,961.10
  6. Step 6: Final answer
    x = 99,023.81

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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.