Home / 115,766.78-159,707.44-67,998.58

Finding the Fourth Proportional to 115,766.78, 159,707.44 and 67,998.58

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Solution

The fourth proportional to 115,766.78, 159,707.44 and 67,998.58 is: 93,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,766.78 : 159,707.44 = 67,998.58 : x
  2. Step 2: Convert to fraction form
    115,766.78/159,707.44 = 67,998.58/x
  3. Step 3: Cross multiply
    115,766.78x = 159,707.44 × 67,998.58
  4. Step 4: Simplify right side
    115,766.78x = 10,859,879,135.44
  5. Step 5: Solve for x
    x = 10,859,879,135.44/115,766.78
  6. Step 6: Final answer
    x = 93,808.25

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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.