Home / 119,815.16-165,343.82-66,100.59

Finding the Fourth Proportional to 119,815.16, 165,343.82 and 66,100.59

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Solution

The fourth proportional to 119,815.16, 165,343.82 and 66,100.59 is: 91,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,815.16 : 165,343.82 = 66,100.59 : x
  2. Step 2: Convert to fraction form
    119,815.16/165,343.82 = 66,100.59/x
  3. Step 3: Cross multiply
    119,815.16x = 165,343.82 × 66,100.59
  4. Step 4: Simplify right side
    119,815.16x = 10,929,323,724.35
  5. Step 5: Solve for x
    x = 10,929,323,724.35/119,815.16
  6. Step 6: Final answer
    x = 91,218.21

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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.