Home / 117,707.09-162,471.35-80,003.21

Finding the Fourth Proportional to 117,707.09, 162,471.35 and 80,003.21

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Solution

The fourth proportional to 117,707.09, 162,471.35 and 80,003.21 is: 110,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,707.09 : 162,471.35 = 80,003.21 : x
  2. Step 2: Convert to fraction form
    117,707.09/162,471.35 = 80,003.21/x
  3. Step 3: Cross multiply
    117,707.09x = 162,471.35 × 80,003.21
  4. Step 4: Simplify right side
    117,707.09x = 12,998,228,920.68
  5. Step 5: Solve for x
    x = 12,998,228,920.68/117,707.09
  6. Step 6: Final answer
    x = 110,428.60

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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.