Home / 115,137.10-172,728.94-48,577.38

Finding the Fourth Proportional to 115,137.10, 172,728.94 and 48,577.38

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Solution

The fourth proportional to 115,137.10, 172,728.94 and 48,577.38 is: 72,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,137.10 : 172,728.94 = 48,577.38 : x
  2. Step 2: Convert to fraction form
    115,137.10/172,728.94 = 48,577.38/x
  3. Step 3: Cross multiply
    115,137.10x = 172,728.94 × 48,577.38
  4. Step 4: Simplify right side
    115,137.10x = 8,390,719,355.38
  5. Step 5: Solve for x
    x = 8,390,719,355.38/115,137.10
  6. Step 6: Final answer
    x = 72,875.90

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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.