Home / 120,933.84-166,933.98-90,806.20

Finding the Fourth Proportional to 120,933.84, 166,933.98 and 90,806.20

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Solution

The fourth proportional to 120,933.84, 166,933.98 and 90,806.20 is: 125,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,933.84 : 166,933.98 = 90,806.20 : x
  2. Step 2: Convert to fraction form
    120,933.84/166,933.98 = 90,806.20/x
  3. Step 3: Cross multiply
    120,933.84x = 166,933.98 × 90,806.20
  4. Step 4: Simplify right side
    120,933.84x = 15,158,640,374.68
  5. Step 5: Solve for x
    x = 15,158,640,374.68/120,933.84
  6. Step 6: Final answer
    x = 125,346.56

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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.