Home / 231,837.80-347,780.28-80,015.12

Finding the Fourth Proportional to 231,837.80, 347,780.28 and 80,015.12

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Solution

The fourth proportional to 231,837.80, 347,780.28 and 80,015.12 is: 120,030.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,837.80 : 347,780.28 = 80,015.12 : x
  2. Step 2: Convert to fraction form
    231,837.80/347,780.28 = 80,015.12/x
  3. Step 3: Cross multiply
    231,837.80x = 347,780.28 × 80,015.12
  4. Step 4: Simplify right side
    231,837.80x = 27,827,682,659.43
  5. Step 5: Solve for x
    x = 27,827,682,659.43/231,837.80
  6. Step 6: Final answer
    x = 120,030.82

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1.5x scale

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.