Home / 133,326.20-183,992.81-72,900.61

Finding the Fourth Proportional to 133,326.20, 183,992.81 and 72,900.61

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Solution

The fourth proportional to 133,326.20, 183,992.81 and 72,900.61 is: 100,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,326.20 : 183,992.81 = 72,900.61 : x
  2. Step 2: Convert to fraction form
    133,326.20/183,992.81 = 72,900.61/x
  3. Step 3: Cross multiply
    133,326.20x = 183,992.81 × 72,900.61
  4. Step 4: Simplify right side
    133,326.20x = 13,413,188,084.61
  5. Step 5: Solve for x
    x = 13,413,188,084.61/133,326.20
  6. Step 6: Final answer
    x = 100,604.29

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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.