Home / 120,839.70-181,173.15-54,225.30

Finding the Fourth Proportional to 120,839.70, 181,173.15 and 54,225.30

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Solution

The fourth proportional to 120,839.70, 181,173.15 and 54,225.30 is: 81,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,839.70 : 181,173.15 = 54,225.30 : x
  2. Step 2: Convert to fraction form
    120,839.70/181,173.15 = 54,225.30/x
  3. Step 3: Cross multiply
    120,839.70x = 181,173.15 × 54,225.30
  4. Step 4: Simplify right side
    120,839.70x = 9,824,168,410.70
  5. Step 5: Solve for x
    x = 9,824,168,410.70/120,839.70
  6. Step 6: Final answer
    x = 81,299.18

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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.