Home / 115,788.97-159,795.83-64,800.66

Finding the Fourth Proportional to 115,788.97, 159,795.83 and 64,800.66

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Solution

The fourth proportional to 115,788.97, 159,795.83 and 64,800.66 is: 89,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,788.97 : 159,795.83 = 64,800.66 : x
  2. Step 2: Convert to fraction form
    115,788.97/159,795.83 = 64,800.66/x
  3. Step 3: Cross multiply
    115,788.97x = 159,795.83 × 64,800.66
  4. Step 4: Simplify right side
    115,788.97x = 10,354,875,330.14
  5. Step 5: Solve for x
    x = 10,354,875,330.14/115,788.97
  6. Step 6: Final answer
    x = 89,428.86

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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.