Home / 120,939.10-181,409.05-36,699.96

Finding the Fourth Proportional to 120,939.10, 181,409.05 and 36,699.96

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Solution

The fourth proportional to 120,939.10, 181,409.05 and 36,699.96 is: 55,050.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,939.10 : 181,409.05 = 36,699.96 : x
  2. Step 2: Convert to fraction form
    120,939.10/181,409.05 = 36,699.96/x
  3. Step 3: Cross multiply
    120,939.10x = 181,409.05 × 36,699.96
  4. Step 4: Simplify right side
    120,939.10x = 6,657,704,878.64
  5. Step 5: Solve for x
    x = 6,657,704,878.64/120,939.10
  6. Step 6: Final answer
    x = 55,050.06

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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.