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Finding the Fourth Proportional to 159,301, 219,850.02 and 87,695.56

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Solution

The fourth proportional to 159,301, 219,850.02 and 87,695.56 is: 121,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,301 : 219,850.02 = 87,695.56 : x
  2. Step 2: Convert to fraction form
    159,301/219,850.02 = 87,695.56/x
  3. Step 3: Cross multiply
    159,301x = 219,850.02 × 87,695.56
  4. Step 4: Simplify right side
    159,301x = 19,279,870,619.91
  5. Step 5: Solve for x
    x = 19,279,870,619.91/159,301
  6. Step 6: Final answer
    x = 121,027.93

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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.