Home / 119,787.73-165,308.07-66,074.56

Finding the Fourth Proportional to 119,787.73, 165,308.07 and 66,074.56

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Solution

The fourth proportional to 119,787.73, 165,308.07 and 66,074.56 is: 91,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,787.73 : 165,308.07 = 66,074.56 : x
  2. Step 2: Convert to fraction form
    119,787.73/165,308.07 = 66,074.56/x
  3. Step 3: Cross multiply
    119,787.73x = 165,308.07 × 66,074.56
  4. Step 4: Simplify right side
    119,787.73x = 10,922,657,989.70
  5. Step 5: Solve for x
    x = 10,922,657,989.70/119,787.73
  6. Step 6: Final answer
    x = 91,183.45

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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.