Home / 194,839.60-292,057.80-105,905.20

Finding the Fourth Proportional to 194,839.60, 292,057.80 and 105,905.20

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Solution

The fourth proportional to 194,839.60, 292,057.80 and 105,905.20 is: 158,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,839.60 : 292,057.80 = 105,905.20 : x
  2. Step 2: Convert to fraction form
    194,839.60/292,057.80 = 105,905.20/x
  3. Step 3: Cross multiply
    194,839.60x = 292,057.80 × 105,905.20
  4. Step 4: Simplify right side
    194,839.60x = 30,930,439,720.56
  5. Step 5: Solve for x
    x = 30,930,439,720.56/194,839.60
  6. Step 6: Final answer
    x = 158,748.22

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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.