Home / 133,284.67-183,932.82-72,855.55

Finding the Fourth Proportional to 133,284.67, 183,932.82 and 72,855.55

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Solution

The fourth proportional to 133,284.67, 183,932.82 and 72,855.55 is: 100,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,284.67 : 183,932.82 = 72,855.55 : x
  2. Step 2: Convert to fraction form
    133,284.67/183,932.82 = 72,855.55/x
  3. Step 3: Cross multiply
    133,284.67x = 183,932.82 × 72,855.55
  4. Step 4: Simplify right side
    133,284.67x = 13,400,526,946.29
  5. Step 5: Solve for x
    x = 13,400,526,946.29/133,284.67
  6. Step 6: Final answer
    x = 100,540.65

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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.