Home / 119,917.78-165,482.18-66,201.64

Finding the Fourth Proportional to 119,917.78, 165,482.18 and 66,201.64

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Solution

The fourth proportional to 119,917.78, 165,482.18 and 66,201.64 is: 91,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,917.78 : 165,482.18 = 66,201.64 : x
  2. Step 2: Convert to fraction form
    119,917.78/165,482.18 = 66,201.64/x
  3. Step 3: Cross multiply
    119,917.78x = 165,482.18 × 66,201.64
  4. Step 4: Simplify right side
    119,917.78x = 10,955,191,706.78
  5. Step 5: Solve for x
    x = 10,955,191,706.78/119,917.78
  6. Step 6: Final answer
    x = 91,355.86

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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.