Home / 115,136.19-172,454.31-55,847.25

Finding the Fourth Proportional to 115,136.19, 172,454.31 and 55,847.25

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Solution

The fourth proportional to 115,136.19, 172,454.31 and 55,847.25 is: 83,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,136.19 : 172,454.31 = 55,847.25 : x
  2. Step 2: Convert to fraction form
    115,136.19/172,454.31 = 55,847.25/x
  3. Step 3: Cross multiply
    115,136.19x = 172,454.31 × 55,847.25
  4. Step 4: Simplify right side
    115,136.19x = 9,631,098,964.15
  5. Step 5: Solve for x
    x = 9,631,098,964.15/115,136.19
  6. Step 6: Final answer
    x = 83,649.62

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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.