Home / 115,736.40-159,717.24-67,990.68

Finding the Fourth Proportional to 115,736.40, 159,717.24 and 67,990.68

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Solution

The fourth proportional to 115,736.40, 159,717.24 and 67,990.68 is: 93,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,736.40 : 159,717.24 = 67,990.68 : x
  2. Step 2: Convert to fraction form
    115,736.40/159,717.24 = 67,990.68/x
  3. Step 3: Cross multiply
    115,736.40x = 159,717.24 × 67,990.68
  4. Step 4: Simplify right side
    115,736.40x = 10,859,283,755.32
  5. Step 5: Solve for x
    x = 10,859,283,755.32/115,736.40
  6. Step 6: Final answer
    x = 93,827.73

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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.