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Finding the Fourth Proportional to 159,094.43, 219,551.14 and 87,479.07

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Solution

The fourth proportional to 159,094.43, 219,551.14 and 87,479.07 is: 120,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,094.43 : 219,551.14 = 87,479.07 : x
  2. Step 2: Convert to fraction form
    159,094.43/219,551.14 = 87,479.07/x
  3. Step 3: Cross multiply
    159,094.43x = 219,551.14 × 87,479.07
  4. Step 4: Simplify right side
    159,094.43x = 19,206,128,446.88
  5. Step 5: Solve for x
    x = 19,206,128,446.88/159,094.43
  6. Step 6: Final answer
    x = 120,721.56

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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.