Home / 165,385.10-248,202.46-121,126.59

Finding the Fourth Proportional to 165,385.10, 248,202.46 and 121,126.59

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Solution

The fourth proportional to 165,385.10, 248,202.46 and 121,126.59 is: 181,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,385.10 : 248,202.46 = 121,126.59 : x
  2. Step 2: Convert to fraction form
    165,385.10/248,202.46 = 121,126.59/x
  3. Step 3: Cross multiply
    165,385.10x = 248,202.46 × 121,126.59
  4. Step 4: Simplify right side
    165,385.10x = 30,063,917,609.41
  5. Step 5: Solve for x
    x = 30,063,917,609.41/165,385.10
  6. Step 6: Final answer
    x = 181,781.29

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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.