Home / 165,629.40-248,444.10-128,304.60

Finding the Fourth Proportional to 165,629.40, 248,444.10 and 128,304.60

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Solution

The fourth proportional to 165,629.40, 248,444.10 and 128,304.60 is: 192,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,629.40 : 248,444.10 = 128,304.60 : x
  2. Step 2: Convert to fraction form
    165,629.40/248,444.10 = 128,304.60/x
  3. Step 3: Cross multiply
    165,629.40x = 248,444.10 × 128,304.60
  4. Step 4: Simplify right side
    165,629.40x = 31,876,520,872.86
  5. Step 5: Solve for x
    x = 31,876,520,872.86/165,629.40
  6. Step 6: Final answer
    x = 192,456.90

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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.