Home / 144,156.06-198,806.31-90,446.94

Finding the Fourth Proportional to 144,156.06, 198,806.31 and 90,446.94

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Solution

The fourth proportional to 144,156.06, 198,806.31 and 90,446.94 is: 124,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,156.06 : 198,806.31 = 90,446.94 : x
  2. Step 2: Convert to fraction form
    144,156.06/198,806.31 = 90,446.94/x
  3. Step 3: Cross multiply
    144,156.06x = 198,806.31 × 90,446.94
  4. Step 4: Simplify right side
    144,156.06x = 17,981,422,392.19
  5. Step 5: Solve for x
    x = 17,981,422,392.19/144,156.06
  6. Step 6: Final answer
    x = 124,735.81

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1.5x scale

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.