Home / 131,381.34-181,248.66-80,396.52

Finding the Fourth Proportional to 131,381.34, 181,248.66 and 80,396.52

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Solution

The fourth proportional to 131,381.34, 181,248.66 and 80,396.52 is: 110,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,381.34 : 181,248.66 = 80,396.52 : x
  2. Step 2: Convert to fraction form
    131,381.34/181,248.66 = 80,396.52/x
  3. Step 3: Cross multiply
    131,381.34x = 181,248.66 × 80,396.52
  4. Step 4: Simplify right side
    131,381.34x = 14,571,761,518.66
  5. Step 5: Solve for x
    x = 14,571,761,518.66/131,381.34
  6. Step 6: Final answer
    x = 110,911.96

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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.