Home / 165,728.80-228,691.80-93,126.16

Finding the Fourth Proportional to 165,728.80, 228,691.80 and 93,126.16

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Solution

The fourth proportional to 165,728.80, 228,691.80 and 93,126.16 is: 128,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,728.80 : 228,691.80 = 93,126.16 : x
  2. Step 2: Convert to fraction form
    165,728.80/228,691.80 = 93,126.16/x
  3. Step 3: Cross multiply
    165,728.80x = 228,691.80 × 93,126.16
  4. Step 4: Simplify right side
    165,728.80x = 21,297,189,157.49
  5. Step 5: Solve for x
    x = 21,297,189,157.49/165,728.80
  6. Step 6: Final answer
    x = 128,506.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.