Home / 119,777.54-165,293.46-66,061.78

Finding the Fourth Proportional to 119,777.54, 165,293.46 and 66,061.78

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Solution

The fourth proportional to 119,777.54, 165,293.46 and 66,061.78 is: 91,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,777.54 : 165,293.46 = 66,061.78 : x
  2. Step 2: Convert to fraction form
    119,777.54/165,293.46 = 66,061.78/x
  3. Step 3: Cross multiply
    119,777.54x = 165,293.46 × 66,061.78
  4. Step 4: Simplify right side
    119,777.54x = 10,919,579,776.73
  5. Step 5: Solve for x
    x = 10,919,579,776.73/119,777.54
  6. Step 6: Final answer
    x = 91,165.51

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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.