Home / 120,983.64-181,512.30-61,860.84

Finding the Fourth Proportional to 120,983.64, 181,512.30 and 61,860.84

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Solution

The fourth proportional to 120,983.64, 181,512.30 and 61,860.84 is: 92,810.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,983.64 : 181,512.30 = 61,860.84 : x
  2. Step 2: Convert to fraction form
    120,983.64/181,512.30 = 61,860.84/x
  3. Step 3: Cross multiply
    120,983.64x = 181,512.30 × 61,860.84
  4. Step 4: Simplify right side
    120,983.64x = 11,228,503,348.33
  5. Step 5: Solve for x
    x = 11,228,503,348.33/120,983.64
  6. Step 6: Final answer
    x = 92,810.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.