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Finding the Fourth Proportional to 158,843.28, 219,192.87 and 87,227.94

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Solution

The fourth proportional to 158,843.28, 219,192.87 and 87,227.94 is: 120,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,843.28 : 219,192.87 = 87,227.94 : x
  2. Step 2: Convert to fraction form
    158,843.28/219,192.87 = 87,227.94/x
  3. Step 3: Cross multiply
    158,843.28x = 219,192.87 × 87,227.94
  4. Step 4: Simplify right side
    158,843.28x = 19,119,742,512.79
  5. Step 5: Solve for x
    x = 19,119,742,512.79/158,843.28
  6. Step 6: Final answer
    x = 120,368.60

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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.