Home / 120,869.19-181,241.51-54,252.25

Finding the Fourth Proportional to 120,869.19, 181,241.51 and 54,252.25

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Solution

The fourth proportional to 120,869.19, 181,241.51 and 54,252.25 is: 81,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.19 : 181,241.51 = 54,252.25 : x
  2. Step 2: Convert to fraction form
    120,869.19/181,241.51 = 54,252.25/x
  3. Step 3: Cross multiply
    120,869.19x = 181,241.51 × 54,252.25
  4. Step 4: Simplify right side
    120,869.19x = 9,832,758,986.53
  5. Step 5: Solve for x
    x = 9,832,758,986.53/120,869.19
  6. Step 6: Final answer
    x = 81,350.42

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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.