Home / 119,860.68-165,406.28-66,144.52

Finding the Fourth Proportional to 119,860.68, 165,406.28 and 66,144.52

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Solution

The fourth proportional to 119,860.68, 165,406.28 and 66,144.52 is: 91,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,860.68 : 165,406.28 = 66,144.52 : x
  2. Step 2: Convert to fraction form
    119,860.68/165,406.28 = 66,144.52/x
  3. Step 3: Cross multiply
    119,860.68x = 165,406.28 × 66,144.52
  4. Step 4: Simplify right side
    119,860.68x = 10,940,718,995.59
  5. Step 5: Solve for x
    x = 10,940,718,995.59/119,860.68
  6. Step 6: Final answer
    x = 91,278.63

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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.