Home / 119,821.24-165,280.02-76,786.24

Finding the Fourth Proportional to 119,821.24, 165,280.02 and 76,786.24

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Solution

The fourth proportional to 119,821.24, 165,280.02 and 76,786.24 is: 105,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,821.24 : 165,280.02 = 76,786.24 : x
  2. Step 2: Convert to fraction form
    119,821.24/165,280.02 = 76,786.24/x
  3. Step 3: Cross multiply
    119,821.24x = 165,280.02 × 76,786.24
  4. Step 4: Simplify right side
    119,821.24x = 12,691,231,282.92
  5. Step 5: Solve for x
    x = 12,691,231,282.92/119,821.24
  6. Step 6: Final answer
    x = 105,918.04

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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.