Home / 120,394.28-166,150.50-66,685.16

Finding the Fourth Proportional to 120,394.28, 166,150.50 and 66,685.16

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Solution

The fourth proportional to 120,394.28, 166,150.50 and 66,685.16 is: 92,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,394.28 : 166,150.50 = 66,685.16 : x
  2. Step 2: Convert to fraction form
    120,394.28/166,150.50 = 66,685.16/x
  3. Step 3: Cross multiply
    120,394.28x = 166,150.50 × 66,685.16
  4. Step 4: Simplify right side
    120,394.28x = 11,079,772,676.58
  5. Step 5: Solve for x
    x = 11,079,772,676.58/120,394.28
  6. Step 6: Final answer
    x = 92,029.06

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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.