Home / 194,432.80-291,260.40-131,447.20

Finding the Fourth Proportional to 194,432.80, 291,260.40 and 131,447.20

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Solution

The fourth proportional to 194,432.80, 291,260.40 and 131,447.20 is: 196,907.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,432.80 : 291,260.40 = 131,447.20 : x
  2. Step 2: Convert to fraction form
    194,432.80/291,260.40 = 131,447.20/x
  3. Step 3: Cross multiply
    194,432.80x = 291,260.40 × 131,447.20
  4. Step 4: Simplify right side
    194,432.80x = 38,285,364,050.88
  5. Step 5: Solve for x
    x = 38,285,364,050.88/194,432.80
  6. Step 6: Final answer
    x = 196,907.95

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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.