Home / 165,640.60-248,315.10-99,107.20

Finding the Fourth Proportional to 165,640.60, 248,315.10 and 99,107.20

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Solution

The fourth proportional to 165,640.60, 248,315.10 and 99,107.20 is: 148,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.60 : 248,315.10 = 99,107.20 : x
  2. Step 2: Convert to fraction form
    165,640.60/248,315.10 = 99,107.20/x
  3. Step 3: Cross multiply
    165,640.60x = 248,315.10 × 99,107.20
  4. Step 4: Simplify right side
    165,640.60x = 24,609,814,278.72
  5. Step 5: Solve for x
    x = 24,609,814,278.72/165,640.60
  6. Step 6: Final answer
    x = 148,573.56

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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.