Home / 115,245.87-172,638.23-91,593.33

Finding the Fourth Proportional to 115,245.87, 172,638.23 and 91,593.33

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Solution

The fourth proportional to 115,245.87, 172,638.23 and 91,593.33 is: 137,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,245.87 : 172,638.23 = 91,593.33 : x
  2. Step 2: Convert to fraction form
    115,245.87/172,638.23 = 91,593.33/x
  3. Step 3: Cross multiply
    115,245.87x = 172,638.23 × 91,593.33
  4. Step 4: Simplify right side
    115,245.87x = 15,812,509,913.04
  5. Step 5: Solve for x
    x = 15,812,509,913.04/115,245.87
  6. Step 6: Final answer
    x = 137,206.74

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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.