Home / 121,015.44-166,998.38-65,823.35

Finding the Fourth Proportional to 121,015.44, 166,998.38 and 65,823.35

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Solution

The fourth proportional to 121,015.44, 166,998.38 and 65,823.35 is: 90,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,015.44 : 166,998.38 = 65,823.35 : x
  2. Step 2: Convert to fraction form
    121,015.44/166,998.38 = 65,823.35/x
  3. Step 3: Cross multiply
    121,015.44x = 166,998.38 × 65,823.35
  4. Step 4: Simplify right side
    121,015.44x = 10,992,391,652.06
  5. Step 5: Solve for x
    x = 10,992,391,652.06/121,015.44
  6. Step 6: Final answer
    x = 90,834.62

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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.