Home / 131,010.62-180,789.44-74,415.74

Finding the Fourth Proportional to 131,010.62, 180,789.44 and 74,415.74

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Solution

The fourth proportional to 131,010.62, 180,789.44 and 74,415.74 is: 102,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,010.62 : 180,789.44 = 74,415.74 : x
  2. Step 2: Convert to fraction form
    131,010.62/180,789.44 = 74,415.74/x
  3. Step 3: Cross multiply
    131,010.62x = 180,789.44 × 74,415.74
  4. Step 4: Simplify right side
    131,010.62x = 13,453,579,961.79
  5. Step 5: Solve for x
    x = 13,453,579,961.79/131,010.62
  6. Step 6: Final answer
    x = 102,690.76

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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.