Home / 115,433.20-172,858.20-92,105.20

Finding the Fourth Proportional to 115,433.20, 172,858.20 and 92,105.20

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Solution

The fourth proportional to 115,433.20, 172,858.20 and 92,105.20 is: 137,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,433.20 : 172,858.20 = 92,105.20 : x
  2. Step 2: Convert to fraction form
    115,433.20/172,858.20 = 92,105.20/x
  3. Step 3: Cross multiply
    115,433.20x = 172,858.20 × 92,105.20
  4. Step 4: Simplify right side
    115,433.20x = 15,921,139,082.64
  5. Step 5: Solve for x
    x = 15,921,139,082.64/115,433.20
  6. Step 6: Final answer
    x = 137,925.13

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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.