Home / 151,936.60-209,629.82-87,402.46

Finding the Fourth Proportional to 151,936.60, 209,629.82 and 87,402.46

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Solution

The fourth proportional to 151,936.60, 209,629.82 and 87,402.46 is: 120,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,936.60 : 209,629.82 = 87,402.46 : x
  2. Step 2: Convert to fraction form
    151,936.60/209,629.82 = 87,402.46/x
  3. Step 3: Cross multiply
    151,936.60x = 209,629.82 × 87,402.46
  4. Step 4: Simplify right side
    151,936.60x = 18,322,161,957.36
  5. Step 5: Solve for x
    x = 18,322,161,957.36/151,936.60
  6. Step 6: Final answer
    x = 120,590.84

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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.