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Finding the Fourth Proportional to 165,813.75, 228,824.60 and 90,363.87

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Solution

The fourth proportional to 165,813.75, 228,824.60 and 90,363.87 is: 124,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,813.75 : 228,824.60 = 90,363.87 : x
  2. Step 2: Convert to fraction form
    165,813.75/228,824.60 = 90,363.87/x
  3. Step 3: Cross multiply
    165,813.75x = 228,824.60 × 90,363.87
  4. Step 4: Simplify right side
    165,813.75x = 20,677,475,955.38
  5. Step 5: Solve for x
    x = 20,677,475,955.38/165,813.75
  6. Step 6: Final answer
    x = 124,703.02

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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.