Home / 151,873.12-209,596.37-87,362.09

Finding the Fourth Proportional to 151,873.12, 209,596.37 and 87,362.09

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Solution

The fourth proportional to 151,873.12, 209,596.37 and 87,362.09 is: 120,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,873.12 : 209,596.37 = 87,362.09 : x
  2. Step 2: Convert to fraction form
    151,873.12/209,596.37 = 87,362.09/x
  3. Step 3: Cross multiply
    151,873.12x = 209,596.37 × 87,362.09
  4. Step 4: Simplify right side
    151,873.12x = 18,310,775,454.82
  5. Step 5: Solve for x
    x = 18,310,775,454.82/151,873.12
  6. Step 6: Final answer
    x = 120,566.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.