Home / 133,325.20-183,991.43-72,899.61

Finding the Fourth Proportional to 133,325.20, 183,991.43 and 72,899.61

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Solution

The fourth proportional to 133,325.20, 183,991.43 and 72,899.61 is: 100,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,325.20 : 183,991.43 = 72,899.61 : x
  2. Step 2: Convert to fraction form
    133,325.20/183,991.43 = 72,899.61/x
  3. Step 3: Cross multiply
    133,325.20x = 183,991.43 × 72,899.61
  4. Step 4: Simplify right side
    133,325.20x = 13,412,902,982.62
  5. Step 5: Solve for x
    x = 13,412,902,982.62/133,325.20
  6. Step 6: Final answer
    x = 100,602.91

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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.