Home / 159,331.68-219,876.03-87,710.22

Finding the Fourth Proportional to 159,331.68, 219,876.03 and 87,710.22

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Solution

The fourth proportional to 159,331.68, 219,876.03 and 87,710.22 is: 121,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,331.68 : 219,876.03 = 87,710.22 : x
  2. Step 2: Convert to fraction form
    159,331.68/219,876.03 = 87,710.22/x
  3. Step 3: Cross multiply
    159,331.68x = 219,876.03 × 87,710.22
  4. Step 4: Simplify right side
    159,331.68x = 19,285,374,964.03
  5. Step 5: Solve for x
    x = 19,285,374,964.03/159,331.68
  6. Step 6: Final answer
    x = 121,039.17

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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.