Home / 110,107.20-165,087.90-39,977.40

Finding the Fourth Proportional to 110,107.20, 165,087.90 and 39,977.40

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Solution

The fourth proportional to 110,107.20, 165,087.90 and 39,977.40 is: 59,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,107.20 : 165,087.90 = 39,977.40 : x
  2. Step 2: Convert to fraction form
    110,107.20/165,087.90 = 39,977.40/x
  3. Step 3: Cross multiply
    110,107.20x = 165,087.90 × 39,977.40
  4. Step 4: Simplify right side
    110,107.20x = 6,599,785,013.46
  5. Step 5: Solve for x
    x = 6,599,785,013.46/110,107.20
  6. Step 6: Final answer
    x = 59,939.63

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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.