Home / 120,534.48-166,344.84-66,821.76

Finding the Fourth Proportional to 120,534.48, 166,344.84 and 66,821.76

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Solution

The fourth proportional to 120,534.48, 166,344.84 and 66,821.76 is: 92,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,534.48 : 166,344.84 = 66,821.76 : x
  2. Step 2: Convert to fraction form
    120,534.48/166,344.84 = 66,821.76/x
  3. Step 3: Cross multiply
    120,534.48x = 166,344.84 × 66,821.76
  4. Step 4: Simplify right side
    120,534.48x = 11,115,454,975.72
  5. Step 5: Solve for x
    x = 11,115,454,975.72/120,534.48
  6. Step 6: Final answer
    x = 92,218.05

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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.