Home / 115,027.89-172,487.08-40,138.93

Finding the Fourth Proportional to 115,027.89, 172,487.08 and 40,138.93

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Solution

The fourth proportional to 115,027.89, 172,487.08 and 40,138.93 is: 60,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.89 : 172,487.08 = 40,138.93 : x
  2. Step 2: Convert to fraction form
    115,027.89/172,487.08 = 40,138.93/x
  3. Step 3: Cross multiply
    115,027.89x = 172,487.08 × 40,138.93
  4. Step 4: Simplify right side
    115,027.89x = 6,923,446,830.02
  5. Step 5: Solve for x
    x = 6,923,446,830.02/115,027.89
  6. Step 6: Final answer
    x = 60,189.29

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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.