Home / 129,902.94-194,832.45-36,387.18

Finding the Fourth Proportional to 129,902.94, 194,832.45 and 36,387.18

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Solution

The fourth proportional to 129,902.94, 194,832.45 and 36,387.18 is: 54,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,902.94 : 194,832.45 = 36,387.18 : x
  2. Step 2: Convert to fraction form
    129,902.94/194,832.45 = 36,387.18/x
  3. Step 3: Cross multiply
    129,902.94x = 194,832.45 × 36,387.18
  4. Step 4: Simplify right side
    129,902.94x = 7,089,403,427.99
  5. Step 5: Solve for x
    x = 7,089,403,427.99/129,902.94
  6. Step 6: Final answer
    x = 54,574.62

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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.