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Finding the Fourth Proportional to 165,640.72, 228,652.86 and 125,365.72

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Solution

The fourth proportional to 165,640.72, 228,652.86 and 125,365.72 is: 173,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.72 : 228,652.86 = 125,365.72 : x
  2. Step 2: Convert to fraction form
    165,640.72/228,652.86 = 125,365.72/x
  3. Step 3: Cross multiply
    165,640.72x = 228,652.86 × 125,365.72
  4. Step 4: Simplify right side
    165,640.72x = 28,665,230,423.96
  5. Step 5: Solve for x
    x = 28,665,230,423.96/165,640.72
  6. Step 6: Final answer
    x = 173,056.66

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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.