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Finding the Fourth Proportional to 165,886.92, 228,923.37 and 90,435.42

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Solution

The fourth proportional to 165,886.92, 228,923.37 and 90,435.42 is: 124,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,886.92 : 228,923.37 = 90,435.42 : x
  2. Step 2: Convert to fraction form
    165,886.92/228,923.37 = 90,435.42/x
  3. Step 3: Cross multiply
    165,886.92x = 228,923.37 × 90,435.42
  4. Step 4: Simplify right side
    165,886.92x = 20,702,781,113.77
  5. Step 5: Solve for x
    x = 20,702,781,113.77/165,886.92
  6. Step 6: Final answer
    x = 124,800.56

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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.