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Finding the Fourth Proportional to 135,233.60, 202,850.40 and 79,246.40

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Solution

The fourth proportional to 135,233.60, 202,850.40 and 79,246.40 is: 118,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,233.60 : 202,850.40 = 79,246.40 : x
  2. Step 2: Convert to fraction form
    135,233.60/202,850.40 = 79,246.40/x
  3. Step 3: Cross multiply
    135,233.60x = 202,850.40 × 79,246.40
  4. Step 4: Simplify right side
    135,233.60x = 16,075,163,938.56
  5. Step 5: Solve for x
    x = 16,075,163,938.56/135,233.60
  6. Step 6: Final answer
    x = 118,869.60

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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.