Home / 115,489.89-159,331.32-67,725.81

Finding the Fourth Proportional to 115,489.89, 159,331.32 and 67,725.81

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Solution

The fourth proportional to 115,489.89, 159,331.32 and 67,725.81 is: 93,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,489.89 : 159,331.32 = 67,725.81 : x
  2. Step 2: Convert to fraction form
    115,489.89/159,331.32 = 67,725.81/x
  3. Step 3: Cross multiply
    115,489.89x = 159,331.32 × 67,725.81
  4. Step 4: Simplify right side
    115,489.89x = 10,790,842,705.37
  5. Step 5: Solve for x
    x = 10,790,842,705.37/115,489.89
  6. Step 6: Final answer
    x = 93,435.39

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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.