Home / 119,728.10-165,224.64-66,013.97

Finding the Fourth Proportional to 119,728.10, 165,224.64 and 66,013.97

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Solution

The fourth proportional to 119,728.10, 165,224.64 and 66,013.97 is: 91,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,728.10 : 165,224.64 = 66,013.97 : x
  2. Step 2: Convert to fraction form
    119,728.10/165,224.64 = 66,013.97/x
  3. Step 3: Cross multiply
    119,728.10x = 165,224.64 × 66,013.97
  4. Step 4: Simplify right side
    119,728.10x = 10,907,133,272.03
  5. Step 5: Solve for x
    x = 10,907,133,272.03/119,728.10
  6. Step 6: Final answer
    x = 91,099.19

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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.