Home / 133,620.96-183,977.28-113,436

Finding the Fourth Proportional to 133,620.96, 183,977.28 and 113,436

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Solution

The fourth proportional to 133,620.96, 183,977.28 and 113,436 is: 156,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,620.96 : 183,977.28 = 113,436 : x
  2. Step 2: Convert to fraction form
    133,620.96/183,977.28 = 113,436/x
  3. Step 3: Cross multiply
    133,620.96x = 183,977.28 × 113,436
  4. Step 4: Simplify right side
    133,620.96x = 20,869,646,734.08
  5. Step 5: Solve for x
    x = 20,869,646,734.08/133,620.96
  6. Step 6: Final answer
    x = 156,185.43

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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.