Home / 131,581.44-181,571.35-77,857.04

Finding the Fourth Proportional to 131,581.44, 181,571.35 and 77,857.04

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Solution

The fourth proportional to 131,581.44, 181,571.35 and 77,857.04 is: 107,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,581.44 : 181,571.35 = 77,857.04 : x
  2. Step 2: Convert to fraction form
    131,581.44/181,571.35 = 77,857.04/x
  3. Step 3: Cross multiply
    131,581.44x = 181,571.35 × 77,857.04
  4. Step 4: Simplify right side
    131,581.44x = 14,136,607,470.52
  5. Step 5: Solve for x
    x = 14,136,607,470.52/131,581.44
  6. Step 6: Final answer
    x = 107,436.18

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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.