Home / 121,101.10-181,522.05-54,529.90

Finding the Fourth Proportional to 121,101.10, 181,522.05 and 54,529.90

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Solution

The fourth proportional to 121,101.10, 181,522.05 and 54,529.90 is: 81,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,101.10 : 181,522.05 = 54,529.90 : x
  2. Step 2: Convert to fraction form
    121,101.10/181,522.05 = 54,529.90/x
  3. Step 3: Cross multiply
    121,101.10x = 181,522.05 × 54,529.90
  4. Step 4: Simplify right side
    121,101.10x = 9,898,379,234.30
  5. Step 5: Solve for x
    x = 9,898,379,234.30/121,101.10
  6. Step 6: Final answer
    x = 81,736.49

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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.