Home / 115,770.12-173,536.83-78,334.14

Finding the Fourth Proportional to 115,770.12, 173,536.83 and 78,334.14

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Solution

The fourth proportional to 115,770.12, 173,536.83 and 78,334.14 is: 117,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,770.12 : 173,536.83 = 78,334.14 : x
  2. Step 2: Convert to fraction form
    115,770.12/173,536.83 = 78,334.14/x
  3. Step 3: Cross multiply
    115,770.12x = 173,536.83 × 78,334.14
  4. Step 4: Simplify right side
    115,770.12x = 13,593,858,336.38
  5. Step 5: Solve for x
    x = 13,593,858,336.38/115,770.12
  6. Step 6: Final answer
    x = 117,421.13

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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.