Home / 119,940.18-165,513.12-66,224.04

Finding the Fourth Proportional to 119,940.18, 165,513.12 and 66,224.04

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Solution

The fourth proportional to 119,940.18, 165,513.12 and 66,224.04 is: 91,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,940.18 : 165,513.12 = 66,224.04 : x
  2. Step 2: Convert to fraction form
    119,940.18/165,513.12 = 66,224.04/x
  3. Step 3: Cross multiply
    119,940.18x = 165,513.12 × 66,224.04
  4. Step 4: Simplify right side
    119,940.18x = 10,960,947,479.40
  5. Step 5: Solve for x
    x = 10,960,947,479.40/119,940.18
  6. Step 6: Final answer
    x = 91,386.79

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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.