Home / 131,247.43-181,135.06-80,294.10

Finding the Fourth Proportional to 131,247.43, 181,135.06 and 80,294.10

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Solution

The fourth proportional to 131,247.43, 181,135.06 and 80,294.10 is: 110,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247.43 : 181,135.06 = 80,294.10 : x
  2. Step 2: Convert to fraction form
    131,247.43/181,135.06 = 80,294.10/x
  3. Step 3: Cross multiply
    131,247.43x = 181,135.06 × 80,294.10
  4. Step 4: Simplify right side
    131,247.43x = 14,544,076,420.41
  5. Step 5: Solve for x
    x = 14,544,076,420.41/131,247.43
  6. Step 6: Final answer
    x = 110,814.18

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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.