Home / 115,767.78-159,708.82-67,999.58

Finding the Fourth Proportional to 115,767.78, 159,708.82 and 67,999.58

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Solution

The fourth proportional to 115,767.78, 159,708.82 and 67,999.58 is: 93,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,767.78 : 159,708.82 = 67,999.58 : x
  2. Step 2: Convert to fraction form
    115,767.78/159,708.82 = 67,999.58/x
  3. Step 3: Cross multiply
    115,767.78x = 159,708.82 × 67,999.58
  4. Step 4: Simplify right side
    115,767.78x = 10,860,132,682.30
  5. Step 5: Solve for x
    x = 10,860,132,682.30/115,767.78
  6. Step 6: Final answer
    x = 93,809.63

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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.