Home / 120,789.32-166,683.68-67,077.74

Finding the Fourth Proportional to 120,789.32, 166,683.68 and 67,077.74

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Solution

The fourth proportional to 120,789.32, 166,683.68 and 67,077.74 is: 92,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,789.32 : 166,683.68 = 67,077.74 : x
  2. Step 2: Convert to fraction form
    120,789.32/166,683.68 = 67,077.74/x
  3. Step 3: Cross multiply
    120,789.32x = 166,683.68 × 67,077.74
  4. Step 4: Simplify right side
    120,789.32x = 11,180,764,549.28
  5. Step 5: Solve for x
    x = 11,180,764,549.28/120,789.32
  6. Step 6: Final answer
    x = 92,564.18

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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.