Home / 120,836.70-181,168.65-54,222.30

Finding the Fourth Proportional to 120,836.70, 181,168.65 and 54,222.30

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Solution

The fourth proportional to 120,836.70, 181,168.65 and 54,222.30 is: 81,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,836.70 : 181,168.65 = 54,222.30 : x
  2. Step 2: Convert to fraction form
    120,836.70/181,168.65 = 54,222.30/x
  3. Step 3: Cross multiply
    120,836.70x = 181,168.65 × 54,222.30
  4. Step 4: Simplify right side
    120,836.70x = 9,823,380,890.90
  5. Step 5: Solve for x
    x = 9,823,380,890.90/120,836.70
  6. Step 6: Final answer
    x = 81,294.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.