Home / 117,770.13-176,630.22-38,865.60

Finding the Fourth Proportional to 117,770.13, 176,630.22 and 38,865.60

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Solution

The fourth proportional to 117,770.13, 176,630.22 and 38,865.60 is: 58,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,770.13 : 176,630.22 = 38,865.60 : x
  2. Step 2: Convert to fraction form
    117,770.13/176,630.22 = 38,865.60/x
  3. Step 3: Cross multiply
    117,770.13x = 176,630.22 × 38,865.60
  4. Step 4: Simplify right side
    117,770.13x = 6,864,839,478.43
  5. Step 5: Solve for x
    x = 6,864,839,478.43/117,770.13
  6. Step 6: Final answer
    x = 58,290.16

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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.