Home / 131,010.82-180,799.77-74,431.78

Finding the Fourth Proportional to 131,010.82, 180,799.77 and 74,431.78

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Solution

The fourth proportional to 131,010.82, 180,799.77 and 74,431.78 is: 102,718.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,010.82 : 180,799.77 = 74,431.78 : x
  2. Step 2: Convert to fraction form
    131,010.82/180,799.77 = 74,431.78/x
  3. Step 3: Cross multiply
    131,010.82x = 180,799.77 × 74,431.78
  4. Step 4: Simplify right side
    131,010.82x = 13,457,248,704.69
  5. Step 5: Solve for x
    x = 13,457,248,704.69/131,010.82
  6. Step 6: Final answer
    x = 102,718.61

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1.5x scale

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.