Home / 120,118.92-165,751.43-66,395.27

Finding the Fourth Proportional to 120,118.92, 165,751.43 and 66,395.27

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Solution

The fourth proportional to 120,118.92, 165,751.43 and 66,395.27 is: 91,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,118.92 : 165,751.43 = 66,395.27 : x
  2. Step 2: Convert to fraction form
    120,118.92/165,751.43 = 66,395.27/x
  3. Step 3: Cross multiply
    120,118.92x = 165,751.43 × 66,395.27
  4. Step 4: Simplify right side
    120,118.92x = 11,005,109,787.00
  5. Step 5: Solve for x
    x = 11,005,109,787.00/120,118.92
  6. Step 6: Final answer
    x = 91,618.45

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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.