Home / 131,579.43-181,579.48-71,149.93

Finding the Fourth Proportional to 131,579.43, 181,579.48 and 71,149.93

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Solution

The fourth proportional to 131,579.43, 181,579.48 and 71,149.93 is: 98,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,579.43 : 181,579.48 = 71,149.93 : x
  2. Step 2: Convert to fraction form
    131,579.43/181,579.48 = 71,149.93/x
  3. Step 3: Cross multiply
    131,579.43x = 181,579.48 × 71,149.93
  4. Step 4: Simplify right side
    131,579.43x = 12,919,367,291.44
  5. Step 5: Solve for x
    x = 12,919,367,291.44/131,579.43
  6. Step 6: Final answer
    x = 98,186.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.