Home / 120,840.70-181,174.65-54,226.30

Finding the Fourth Proportional to 120,840.70, 181,174.65 and 54,226.30

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Solution

The fourth proportional to 120,840.70, 181,174.65 and 54,226.30 is: 81,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,840.70 : 181,174.65 = 54,226.30 : x
  2. Step 2: Convert to fraction form
    120,840.70/181,174.65 = 54,226.30/x
  3. Step 3: Cross multiply
    120,840.70x = 181,174.65 × 54,226.30
  4. Step 4: Simplify right side
    120,840.70x = 9,824,430,923.30
  5. Step 5: Solve for x
    x = 9,824,430,923.30/120,840.70
  6. Step 6: Final answer
    x = 81,300.68

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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.