Home / 120,789.20-181,208.10-41,887.10

Finding the Fourth Proportional to 120,789.20, 181,208.10 and 41,887.10

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Solution

The fourth proportional to 120,789.20, 181,208.10 and 41,887.10 is: 62,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,789.20 : 181,208.10 = 41,887.10 : x
  2. Step 2: Convert to fraction form
    120,789.20/181,208.10 = 41,887.10/x
  3. Step 3: Cross multiply
    120,789.20x = 181,208.10 × 41,887.10
  4. Step 4: Simplify right side
    120,789.20x = 7,590,281,805.51
  5. Step 5: Solve for x
    x = 7,590,281,805.51/120,789.20
  6. Step 6: Final answer
    x = 62,839.08

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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.