Home / 194,420.80-291,242.40-131,435.20

Finding the Fourth Proportional to 194,420.80, 291,242.40 and 131,435.20

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Solution

The fourth proportional to 194,420.80, 291,242.40 and 131,435.20 is: 196,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,420.80 : 291,242.40 = 131,435.20 : x
  2. Step 2: Convert to fraction form
    194,420.80/291,242.40 = 131,435.20/x
  3. Step 3: Cross multiply
    194,420.80x = 291,242.40 × 131,435.20
  4. Step 4: Simplify right side
    194,420.80x = 38,279,503,092.48
  5. Step 5: Solve for x
    x = 38,279,503,092.48/194,420.80
  6. Step 6: Final answer
    x = 196,889.96

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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.