Home / 120,292.67-165,997.95-68,611.80

Finding the Fourth Proportional to 120,292.67, 165,997.95 and 68,611.80

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Solution

The fourth proportional to 120,292.67, 165,997.95 and 68,611.80 is: 94,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292.67 : 165,997.95 = 68,611.80 : x
  2. Step 2: Convert to fraction form
    120,292.67/165,997.95 = 68,611.80/x
  3. Step 3: Cross multiply
    120,292.67x = 165,997.95 × 68,611.80
  4. Step 4: Simplify right side
    120,292.67x = 11,389,418,145.81
  5. Step 5: Solve for x
    x = 11,389,418,145.81/120,292.67
  6. Step 6: Final answer
    x = 94,680.90

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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.