Home / 115,709.68-159,694.14-64,725.25

Finding the Fourth Proportional to 115,709.68, 159,694.14 and 64,725.25

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Solution

The fourth proportional to 115,709.68, 159,694.14 and 64,725.25 is: 89,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,709.68 : 159,694.14 = 64,725.25 : x
  2. Step 2: Convert to fraction form
    115,709.68/159,694.14 = 64,725.25/x
  3. Step 3: Cross multiply
    115,709.68x = 159,694.14 × 64,725.25
  4. Step 4: Simplify right side
    115,709.68x = 10,336,242,336.56
  5. Step 5: Solve for x
    x = 10,336,242,336.56/115,709.68
  6. Step 6: Final answer
    x = 89,329.11

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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.