Home / 131,290.40-181,242.24-88,917.44

Finding the Fourth Proportional to 131,290.40, 181,242.24 and 88,917.44

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Solution

The fourth proportional to 131,290.40, 181,242.24 and 88,917.44 is: 122,747.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,290.40 : 181,242.24 = 88,917.44 : x
  2. Step 2: Convert to fraction form
    131,290.40/181,242.24 = 88,917.44/x
  3. Step 3: Cross multiply
    131,290.40x = 181,242.24 × 88,917.44
  4. Step 4: Simplify right side
    131,290.40x = 16,115,596,000.67
  5. Step 5: Solve for x
    x = 16,115,596,000.67/131,290.40
  6. Step 6: Final answer
    x = 122,747.71

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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.