Home / 165,689.20-228,653.70-90,237.64

Finding the Fourth Proportional to 165,689.20, 228,653.70 and 90,237.64

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Solution

The fourth proportional to 165,689.20, 228,653.70 and 90,237.64 is: 124,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,689.20 : 228,653.70 = 90,237.64 : x
  2. Step 2: Convert to fraction form
    165,689.20/228,653.70 = 90,237.64/x
  3. Step 3: Cross multiply
    165,689.20x = 228,653.70 × 90,237.64
  4. Step 4: Simplify right side
    165,689.20x = 20,633,170,265.27
  5. Step 5: Solve for x
    x = 20,633,170,265.27/165,689.20
  6. Step 6: Final answer
    x = 124,529.36

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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.