Home / 131,356.46-181,201.87-80,393.89

Finding the Fourth Proportional to 131,356.46, 181,201.87 and 80,393.89

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Solution

The fourth proportional to 131,356.46, 181,201.87 and 80,393.89 is: 110,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,356.46 : 181,201.87 = 80,393.89 : x
  2. Step 2: Convert to fraction form
    131,356.46/181,201.87 = 80,393.89/x
  3. Step 3: Cross multiply
    131,356.46x = 181,201.87 × 80,393.89
  4. Step 4: Simplify right side
    131,356.46x = 14,567,523,204.57
  5. Step 5: Solve for x
    x = 14,567,523,204.57/131,356.46
  6. Step 6: Final answer
    x = 110,900.70

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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.