Home / 194,270.40-291,319.20-89,121.60

Finding the Fourth Proportional to 194,270.40, 291,319.20 and 89,121.60

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Solution

The fourth proportional to 194,270.40, 291,319.20 and 89,121.60 is: 133,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,270.40 : 291,319.20 = 89,121.60 : x
  2. Step 2: Convert to fraction form
    194,270.40/291,319.20 = 89,121.60/x
  3. Step 3: Cross multiply
    194,270.40x = 291,319.20 × 89,121.60
  4. Step 4: Simplify right side
    194,270.40x = 25,962,833,214.72
  5. Step 5: Solve for x
    x = 25,962,833,214.72/194,270.40
  6. Step 6: Final answer
    x = 133,642.76

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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.