Home / 133,266.96-183,912.66-72,836.28

Finding the Fourth Proportional to 133,266.96, 183,912.66 and 72,836.28

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Solution

The fourth proportional to 133,266.96, 183,912.66 and 72,836.28 is: 100,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,266.96 : 183,912.66 = 72,836.28 : x
  2. Step 2: Convert to fraction form
    133,266.96/183,912.66 = 72,836.28/x
  3. Step 3: Cross multiply
    133,266.96x = 183,912.66 × 72,836.28
  4. Step 4: Simplify right side
    133,266.96x = 13,395,513,999.30
  5. Step 5: Solve for x
    x = 13,395,513,999.30/133,266.96
  6. Step 6: Final answer
    x = 100,516.39

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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.