Home / 194,076.80-290,726.40-131,091.20

Finding the Fourth Proportional to 194,076.80, 290,726.40 and 131,091.20

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Solution

The fourth proportional to 194,076.80, 290,726.40 and 131,091.20 is: 196,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,076.80 : 290,726.40 = 131,091.20 : x
  2. Step 2: Convert to fraction form
    194,076.80/290,726.40 = 131,091.20/x
  3. Step 3: Cross multiply
    194,076.80x = 290,726.40 × 131,091.20
  4. Step 4: Simplify right side
    194,076.80x = 38,111,672,647.68
  5. Step 5: Solve for x
    x = 38,111,672,647.68/194,076.80
  6. Step 6: Final answer
    x = 196,374.18

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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.