Home / 131,605.18-181,614.62-71,175.89

Finding the Fourth Proportional to 131,605.18, 181,614.62 and 71,175.89

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Solution

The fourth proportional to 131,605.18, 181,614.62 and 71,175.89 is: 98,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,605.18 : 181,614.62 = 71,175.89 : x
  2. Step 2: Convert to fraction form
    131,605.18/181,614.62 = 71,175.89/x
  3. Step 3: Cross multiply
    131,605.18x = 181,614.62 × 71,175.89
  4. Step 4: Simplify right side
    131,605.18x = 12,926,582,847.49
  5. Step 5: Solve for x
    x = 12,926,582,847.49/131,605.18
  6. Step 6: Final answer
    x = 98,222.45

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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.