Home / 119,911.77-165,478.64-66,196.66

Finding the Fourth Proportional to 119,911.77, 165,478.64 and 66,196.66

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Solution

The fourth proportional to 119,911.77, 165,478.64 and 66,196.66 is: 91,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,911.77 : 165,478.64 = 66,196.66 : x
  2. Step 2: Convert to fraction form
    119,911.77/165,478.64 = 66,196.66/x
  3. Step 3: Cross multiply
    119,911.77x = 165,478.64 × 66,196.66
  4. Step 4: Simplify right side
    119,911.77x = 10,954,133,269.34
  5. Step 5: Solve for x
    x = 10,954,133,269.34/119,911.77
  6. Step 6: Final answer
    x = 91,351.61

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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.