Home / 133,269.20-183,906.50-72,839.35

Finding the Fourth Proportional to 133,269.20, 183,906.50 and 72,839.35

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Solution

The fourth proportional to 133,269.20, 183,906.50 and 72,839.35 is: 100,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,269.20 : 183,906.50 = 72,839.35 : x
  2. Step 2: Convert to fraction form
    133,269.20/183,906.50 = 72,839.35/x
  3. Step 3: Cross multiply
    133,269.20x = 183,906.50 × 72,839.35
  4. Step 4: Simplify right side
    133,269.20x = 13,395,630,196.18
  5. Step 5: Solve for x
    x = 13,395,630,196.18/133,269.20
  6. Step 6: Final answer
    x = 100,515.58

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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.