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Finding the Fourth Proportional to 106,315.03, 159,492.12 and 43,990.39

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Solution

The fourth proportional to 106,315.03, 159,492.12 and 43,990.39 is: 65,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,315.03 : 159,492.12 = 43,990.39 : x
  2. Step 2: Convert to fraction form
    106,315.03/159,492.12 = 43,990.39/x
  3. Step 3: Cross multiply
    106,315.03x = 159,492.12 × 43,990.39
  4. Step 4: Simplify right side
    106,315.03x = 7,016,120,560.73
  5. Step 5: Solve for x
    x = 7,016,120,560.73/106,315.03
  6. Step 6: Final answer
    x = 65,993.68

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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.