Home / 158,571.08-218,942.89-102,080.86

Finding the Fourth Proportional to 158,571.08, 218,942.89 and 102,080.86

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Solution

The fourth proportional to 158,571.08, 218,942.89 and 102,080.86 is: 140,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,571.08 : 218,942.89 = 102,080.86 : x
  2. Step 2: Convert to fraction form
    158,571.08/218,942.89 = 102,080.86/x
  3. Step 3: Cross multiply
    158,571.08x = 218,942.89 × 102,080.86
  4. Step 4: Simplify right side
    158,571.08x = 22,349,878,502.09
  5. Step 5: Solve for x
    x = 22,349,878,502.09/158,571.08
  6. Step 6: Final answer
    x = 140,945.49

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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.