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Finding the Fourth Proportional to 147,091.80, 202,990.14 and 80,028.12

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Solution

The fourth proportional to 147,091.80, 202,990.14 and 80,028.12 is: 110,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,091.80 : 202,990.14 = 80,028.12 : x
  2. Step 2: Convert to fraction form
    147,091.80/202,990.14 = 80,028.12/x
  3. Step 3: Cross multiply
    147,091.80x = 202,990.14 × 80,028.12
  4. Step 4: Simplify right side
    147,091.80x = 16,244,919,282.74
  5. Step 5: Solve for x
    x = 16,244,919,282.74/147,091.80
  6. Step 6: Final answer
    x = 110,440.69

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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.