Home / 113,991.50-170,989.68-39,111.32

Finding the Fourth Proportional to 113,991.50, 170,989.68 and 39,111.32

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Solution

The fourth proportional to 113,991.50, 170,989.68 and 39,111.32 is: 58,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,991.50 : 170,989.68 = 39,111.32 : x
  2. Step 2: Convert to fraction form
    113,991.50/170,989.68 = 39,111.32/x
  3. Step 3: Cross multiply
    113,991.50x = 170,989.68 × 39,111.32
  4. Step 4: Simplify right side
    113,991.50x = 6,687,632,091.18
  5. Step 5: Solve for x
    x = 6,687,632,091.18/113,991.50
  6. Step 6: Final answer
    x = 58,667.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.