Home / 131,255.74-181,121.45-73,108.10

Finding the Fourth Proportional to 131,255.74, 181,121.45 and 73,108.10

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Solution

The fourth proportional to 131,255.74, 181,121.45 and 73,108.10 is: 100,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,255.74 : 181,121.45 = 73,108.10 : x
  2. Step 2: Convert to fraction form
    131,255.74/181,121.45 = 73,108.10/x
  3. Step 3: Cross multiply
    131,255.74x = 181,121.45 × 73,108.10
  4. Step 4: Simplify right side
    131,255.74x = 13,241,444,173.14
  5. Step 5: Solve for x
    x = 13,241,444,173.14/131,255.74
  6. Step 6: Final answer
    x = 100,882.79

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1.5x scale

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.