Home / 239,961.72-359,986.32-120,081.36

Finding the Fourth Proportional to 239,961.72, 359,986.32 and 120,081.36

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Solution

The fourth proportional to 239,961.72, 359,986.32 and 120,081.36 is: 180,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,961.72 : 359,986.32 = 120,081.36 : x
  2. Step 2: Convert to fraction form
    239,961.72/359,986.32 = 120,081.36/x
  3. Step 3: Cross multiply
    239,961.72x = 359,986.32 × 120,081.36
  4. Step 4: Simplify right side
    239,961.72x = 43,227,646,887.00
  5. Step 5: Solve for x
    x = 43,227,646,887.00/239,961.72
  6. Step 6: Final answer
    x = 180,143.93

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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.