Home / 131,222.48-181,173.96-80,995.28

Finding the Fourth Proportional to 131,222.48, 181,173.96 and 80,995.28

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Solution

The fourth proportional to 131,222.48, 181,173.96 and 80,995.28 is: 111,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,222.48 : 181,173.96 = 80,995.28 : x
  2. Step 2: Convert to fraction form
    131,222.48/181,173.96 = 80,995.28/x
  3. Step 3: Cross multiply
    131,222.48x = 181,173.96 × 80,995.28
  4. Step 4: Simplify right side
    131,222.48x = 14,674,235,618.91
  5. Step 5: Solve for x
    x = 14,674,235,618.91/131,222.48
  6. Step 6: Final answer
    x = 111,827.15

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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.