Home / 106,040.72-159,080.40-43,677.20

Finding the Fourth Proportional to 106,040.72, 159,080.40 and 43,677.20

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Solution

The fourth proportional to 106,040.72, 159,080.40 and 43,677.20 is: 65,523.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,040.72 : 159,080.40 = 43,677.20 : x
  2. Step 2: Convert to fraction form
    106,040.72/159,080.40 = 43,677.20/x
  3. Step 3: Cross multiply
    106,040.72x = 159,080.40 × 43,677.20
  4. Step 4: Simplify right side
    106,040.72x = 6,948,186,446.88
  5. Step 5: Solve for x
    x = 6,948,186,446.88/106,040.72
  6. Step 6: Final answer
    x = 65,523.76

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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.