Home / 121,285.32-181,947.40-51,174.96

Finding the Fourth Proportional to 121,285.32, 181,947.40 and 51,174.96

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Solution

The fourth proportional to 121,285.32, 181,947.40 and 51,174.96 is: 76,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.32 : 181,947.40 = 51,174.96 : x
  2. Step 2: Convert to fraction form
    121,285.32/181,947.40 = 51,174.96/x
  3. Step 3: Cross multiply
    121,285.32x = 181,947.40 × 51,174.96
  4. Step 4: Simplify right side
    121,285.32x = 9,311,150,917.10
  5. Step 5: Solve for x
    x = 9,311,150,917.10/121,285.32
  6. Step 6: Final answer
    x = 76,770.63

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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.