Home / 131,324.41-181,185.55-77,627.49

Finding the Fourth Proportional to 131,324.41, 181,185.55 and 77,627.49

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Solution

The fourth proportional to 131,324.41, 181,185.55 and 77,627.49 is: 107,101.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,324.41 : 181,185.55 = 77,627.49 : x
  2. Step 2: Convert to fraction form
    131,324.41/181,185.55 = 77,627.49/x
  3. Step 3: Cross multiply
    131,324.41x = 181,185.55 × 77,627.49
  4. Step 4: Simplify right side
    131,324.41x = 14,064,979,470.77
  5. Step 5: Solve for x
    x = 14,064,979,470.77/131,324.41
  6. Step 6: Final answer
    x = 107,101.03

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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.