Home / 131,418.62-181,357.76-70,989.26

Finding the Fourth Proportional to 131,418.62, 181,357.76 and 70,989.26

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Solution

The fourth proportional to 131,418.62, 181,357.76 and 70,989.26 is: 97,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.62 : 181,357.76 = 70,989.26 : x
  2. Step 2: Convert to fraction form
    131,418.62/181,357.76 = 70,989.26/x
  3. Step 3: Cross multiply
    131,418.62x = 181,357.76 × 70,989.26
  4. Step 4: Simplify right side
    131,418.62x = 12,874,453,177.66
  5. Step 5: Solve for x
    x = 12,874,453,177.66/131,418.62
  6. Step 6: Final answer
    x = 97,965.21

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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.