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Finding the Fourth Proportional to 100,982, 151,515.96 and 41,860.64

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Solution

The fourth proportional to 100,982, 151,515.96 and 41,860.64 is: 62,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,982 : 151,515.96 = 41,860.64 : x
  2. Step 2: Convert to fraction form
    100,982/151,515.96 = 41,860.64/x
  3. Step 3: Cross multiply
    100,982x = 151,515.96 × 41,860.64
  4. Step 4: Simplify right side
    100,982x = 6,342,555,055.81
  5. Step 5: Solve for x
    x = 6,342,555,055.81/100,982
  6. Step 6: Final answer
    x = 62,808.77

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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.