Home / 120,855.84-181,287.33-57,682.62

Finding the Fourth Proportional to 120,855.84, 181,287.33 and 57,682.62

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Solution

The fourth proportional to 120,855.84, 181,287.33 and 57,682.62 is: 86,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,855.84 : 181,287.33 = 57,682.62 : x
  2. Step 2: Convert to fraction form
    120,855.84/181,287.33 = 57,682.62/x
  3. Step 3: Cross multiply
    120,855.84x = 181,287.33 × 57,682.62
  4. Step 4: Simplify right side
    120,855.84x = 10,457,128,167.20
  5. Step 5: Solve for x
    x = 10,457,128,167.20/120,855.84
  6. Step 6: Final answer
    x = 86,525.63

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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.