Home / 131,648.90-181,597.55-80,684.51

Finding the Fourth Proportional to 131,648.90, 181,597.55 and 80,684.51

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Solution

The fourth proportional to 131,648.90, 181,597.55 and 80,684.51 is: 111,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,648.90 : 181,597.55 = 80,684.51 : x
  2. Step 2: Convert to fraction form
    131,648.90/181,597.55 = 80,684.51/x
  3. Step 3: Cross multiply
    131,648.90x = 181,597.55 × 80,684.51
  4. Step 4: Simplify right side
    131,648.90x = 14,652,108,027.54
  5. Step 5: Solve for x
    x = 14,652,108,027.54/131,648.90
  6. Step 6: Final answer
    x = 111,296.86

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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.