Home / 194,436.80-291,266.40-131,451.20

Finding the Fourth Proportional to 194,436.80, 291,266.40 and 131,451.20

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Solution

The fourth proportional to 194,436.80, 291,266.40 and 131,451.20 is: 196,913.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,436.80 : 291,266.40 = 131,451.20 : x
  2. Step 2: Convert to fraction form
    194,436.80/291,266.40 = 131,451.20/x
  3. Step 3: Cross multiply
    194,436.80x = 291,266.40 × 131,451.20
  4. Step 4: Simplify right side
    194,436.80x = 38,287,317,799.68
  5. Step 5: Solve for x
    x = 38,287,317,799.68/194,436.80
  6. Step 6: Final answer
    x = 196,913.95

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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.