Home / 165,604.50-228,534.75-90,153.54

Finding the Fourth Proportional to 165,604.50, 228,534.75 and 90,153.54

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Solution

The fourth proportional to 165,604.50, 228,534.75 and 90,153.54 is: 124,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,604.50 : 228,534.75 = 90,153.54 : x
  2. Step 2: Convert to fraction form
    165,604.50/228,534.75 = 90,153.54/x
  3. Step 3: Cross multiply
    165,604.50x = 228,534.75 × 90,153.54
  4. Step 4: Simplify right side
    165,604.50x = 20,603,216,725.52
  5. Step 5: Solve for x
    x = 20,603,216,725.52/165,604.50
  6. Step 6: Final answer
    x = 124,412.18

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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.