Home / 220,708.73-304,556.98-123,890.40

Finding the Fourth Proportional to 220,708.73, 304,556.98 and 123,890.40

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Solution

The fourth proportional to 220,708.73, 304,556.98 and 123,890.40 is: 170,956.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,708.73 : 304,556.98 = 123,890.40 : x
  2. Step 2: Convert to fraction form
    220,708.73/304,556.98 = 123,890.40/x
  3. Step 3: Cross multiply
    220,708.73x = 304,556.98 × 123,890.40
  4. Step 4: Simplify right side
    220,708.73x = 37,731,686,074.99
  5. Step 5: Solve for x
    x = 37,731,686,074.99/220,708.73
  6. Step 6: Final answer
    x = 170,956.93

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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.