Home / 165,389-228,256.08-92,811.92

Finding the Fourth Proportional to 165,389, 228,256.08 and 92,811.92

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Solution

The fourth proportional to 165,389, 228,256.08 and 92,811.92 is: 128,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,389 : 228,256.08 = 92,811.92 : x
  2. Step 2: Convert to fraction form
    165,389/228,256.08 = 92,811.92/x
  3. Step 3: Cross multiply
    165,389x = 228,256.08 × 92,811.92
  4. Step 4: Simplify right side
    165,389x = 21,184,885,036.47
  5. Step 5: Solve for x
    x = 21,184,885,036.47/165,389
  6. Step 6: Final answer
    x = 128,091.26

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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.