Home / 115,131.16-172,681.62-36,245.80

Finding the Fourth Proportional to 115,131.16, 172,681.62 and 36,245.80

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Solution

The fourth proportional to 115,131.16, 172,681.62 and 36,245.80 is: 54,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,131.16 : 172,681.62 = 36,245.80 : x
  2. Step 2: Convert to fraction form
    115,131.16/172,681.62 = 36,245.80/x
  3. Step 3: Cross multiply
    115,131.16x = 172,681.62 × 36,245.80
  4. Step 4: Simplify right side
    115,131.16x = 6,258,983,462.20
  5. Step 5: Solve for x
    x = 6,258,983,462.20/115,131.16
  6. Step 6: Final answer
    x = 54,363.94

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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.