Home / 120,144.06-165,796.98-65,696.40

Finding the Fourth Proportional to 120,144.06, 165,796.98 and 65,696.40

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Solution

The fourth proportional to 120,144.06, 165,796.98 and 65,696.40 is: 90,660.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,144.06 : 165,796.98 = 65,696.40 : x
  2. Step 2: Convert to fraction form
    120,144.06/165,796.98 = 65,696.40/x
  3. Step 3: Cross multiply
    120,144.06x = 165,796.98 × 65,696.40
  4. Step 4: Simplify right side
    120,144.06x = 10,892,265,306.36
  5. Step 5: Solve for x
    x = 10,892,265,306.36/120,144.06
  6. Step 6: Final answer
    x = 90,660.04

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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.