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Finding the Fourth Proportional to 100,981.50, 151,515.21 and 41,860.14

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Solution

The fourth proportional to 100,981.50, 151,515.21 and 41,860.14 is: 62,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,981.50 : 151,515.21 = 41,860.14 : x
  2. Step 2: Convert to fraction form
    100,981.50/151,515.21 = 41,860.14/x
  3. Step 3: Cross multiply
    100,981.50x = 151,515.21 × 41,860.14
  4. Step 4: Simplify right side
    100,981.50x = 6,342,447,902.73
  5. Step 5: Solve for x
    x = 6,342,447,902.73/100,981.50
  6. Step 6: Final answer
    x = 62,808.02

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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.