Home / 120,790.32-166,685.06-67,078.74

Finding the Fourth Proportional to 120,790.32, 166,685.06 and 67,078.74

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Solution

The fourth proportional to 120,790.32, 166,685.06 and 67,078.74 is: 92,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,790.32 : 166,685.06 = 67,078.74 : x
  2. Step 2: Convert to fraction form
    120,790.32/166,685.06 = 67,078.74/x
  3. Step 3: Cross multiply
    120,790.32x = 166,685.06 × 67,078.74
  4. Step 4: Simplify right side
    120,790.32x = 11,181,023,801.62
  5. Step 5: Solve for x
    x = 11,181,023,801.62/120,790.32
  6. Step 6: Final answer
    x = 92,565.56

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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.