Home / 133,272.78-183,919.05-72,841.74

Finding the Fourth Proportional to 133,272.78, 183,919.05 and 72,841.74

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Solution

The fourth proportional to 133,272.78, 183,919.05 and 72,841.74 is: 100,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,272.78 : 183,919.05 = 72,841.74 : x
  2. Step 2: Convert to fraction form
    133,272.78/183,919.05 = 72,841.74/x
  3. Step 3: Cross multiply
    133,272.78x = 183,919.05 × 72,841.74
  4. Step 4: Simplify right side
    133,272.78x = 13,396,983,621.15
  5. Step 5: Solve for x
    x = 13,396,983,621.15/133,272.78
  6. Step 6: Final answer
    x = 100,523.03

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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.