Home / 119,731.76-165,230.49-66,015.83

Finding the Fourth Proportional to 119,731.76, 165,230.49 and 66,015.83

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Solution

The fourth proportional to 119,731.76, 165,230.49 and 66,015.83 is: 91,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,731.76 : 165,230.49 = 66,015.83 : x
  2. Step 2: Convert to fraction form
    119,731.76/165,230.49 = 66,015.83/x
  3. Step 3: Cross multiply
    119,731.76x = 165,230.49 × 66,015.83
  4. Step 4: Simplify right side
    119,731.76x = 10,907,827,112.50
  5. Step 5: Solve for x
    x = 10,907,827,112.50/119,731.76
  6. Step 6: Final answer
    x = 91,102.21

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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.