Home / 148,222.10-204,538.75-86,959.78

Finding the Fourth Proportional to 148,222.10, 204,538.75 and 86,959.78

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Solution

The fourth proportional to 148,222.10, 204,538.75 and 86,959.78 is: 119,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,222.10 : 204,538.75 = 86,959.78 : x
  2. Step 2: Convert to fraction form
    148,222.10/204,538.75 = 86,959.78/x
  3. Step 3: Cross multiply
    148,222.10x = 204,538.75 × 86,959.78
  4. Step 4: Simplify right side
    148,222.10x = 17,786,643,972.73
  5. Step 5: Solve for x
    x = 17,786,643,972.73/148,222.10
  6. Step 6: Final answer
    x = 119,999.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.