Home / 115,150.56-172,725.84-65,868

Finding the Fourth Proportional to 115,150.56, 172,725.84 and 65,868

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Solution

The fourth proportional to 115,150.56, 172,725.84 and 65,868 is: 98,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,150.56 : 172,725.84 = 65,868 : x
  2. Step 2: Convert to fraction form
    115,150.56/172,725.84 = 65,868/x
  3. Step 3: Cross multiply
    115,150.56x = 172,725.84 × 65,868
  4. Step 4: Simplify right side
    115,150.56x = 11,377,105,629.12
  5. Step 5: Solve for x
    x = 11,377,105,629.12/115,150.56
  6. Step 6: Final answer
    x = 98,802.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.