Home / 120,822.09-166,667.25-112,269.21

Finding the Fourth Proportional to 120,822.09, 166,667.25 and 112,269.21

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Solution

The fourth proportional to 120,822.09, 166,667.25 and 112,269.21 is: 154,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,822.09 : 166,667.25 = 112,269.21 : x
  2. Step 2: Convert to fraction form
    120,822.09/166,667.25 = 112,269.21/x
  3. Step 3: Cross multiply
    120,822.09x = 166,667.25 × 112,269.21
  4. Step 4: Simplify right side
    120,822.09x = 18,711,600,490.37
  5. Step 5: Solve for x
    x = 18,711,600,490.37/120,822.09
  6. Step 6: Final answer
    x = 154,869.04

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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.