Home / 119,936.52-165,513-66,221.64

Finding the Fourth Proportional to 119,936.52, 165,513 and 66,221.64

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Solution

The fourth proportional to 119,936.52, 165,513 and 66,221.64 is: 91,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,936.52 : 165,513 = 66,221.64 : x
  2. Step 2: Convert to fraction form
    119,936.52/165,513 = 66,221.64/x
  3. Step 3: Cross multiply
    119,936.52x = 165,513 × 66,221.64
  4. Step 4: Simplify right side
    119,936.52x = 10,960,542,301.32
  5. Step 5: Solve for x
    x = 10,960,542,301.32/119,936.52
  6. Step 6: Final answer
    x = 91,386.20

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1.5x scale

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.