Home / 165,736.08-228,722.76-90,288.72

Finding the Fourth Proportional to 165,736.08, 228,722.76 and 90,288.72

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Solution

The fourth proportional to 165,736.08, 228,722.76 and 90,288.72 is: 124,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.08 : 228,722.76 = 90,288.72 : x
  2. Step 2: Convert to fraction form
    165,736.08/228,722.76 = 90,288.72/x
  3. Step 3: Cross multiply
    165,736.08x = 228,722.76 × 90,288.72
  4. Step 4: Simplify right side
    165,736.08x = 20,651,085,235.27
  5. Step 5: Solve for x
    x = 20,651,085,235.27/165,736.08
  6. Step 6: Final answer
    x = 124,602.23

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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.