Home / 151,394.64-208,924.62-87,769.35

Finding the Fourth Proportional to 151,394.64, 208,924.62 and 87,769.35

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Solution

The fourth proportional to 151,394.64, 208,924.62 and 87,769.35 is: 121,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394.64 : 208,924.62 = 87,769.35 : x
  2. Step 2: Convert to fraction form
    151,394.64/208,924.62 = 87,769.35/x
  3. Step 3: Cross multiply
    151,394.64x = 208,924.62 × 87,769.35
  4. Step 4: Simplify right side
    151,394.64x = 18,337,178,096.40
  5. Step 5: Solve for x
    x = 18,337,178,096.40/151,394.64
  6. Step 6: Final answer
    x = 121,121.71

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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.