Home / 120,631.60-166,472.52-66,183.40

Finding the Fourth Proportional to 120,631.60, 166,472.52 and 66,183.40

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Solution

The fourth proportional to 120,631.60, 166,472.52 and 66,183.40 is: 91,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.60 : 166,472.52 = 66,183.40 : x
  2. Step 2: Convert to fraction form
    120,631.60/166,472.52 = 66,183.40/x
  3. Step 3: Cross multiply
    120,631.60x = 166,472.52 × 66,183.40
  4. Step 4: Simplify right side
    120,631.60x = 11,017,717,380.17
  5. Step 5: Solve for x
    x = 11,017,717,380.17/120,631.60
  6. Step 6: Final answer
    x = 91,333.59

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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.