Home / 165,920.27-228,970.20-90,468.77

Finding the Fourth Proportional to 165,920.27, 228,970.20 and 90,468.77

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Solution

The fourth proportional to 165,920.27, 228,970.20 and 90,468.77 is: 124,847.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,920.27 : 228,970.20 = 90,468.77 : x
  2. Step 2: Convert to fraction form
    165,920.27/228,970.20 = 90,468.77/x
  3. Step 3: Cross multiply
    165,920.27x = 228,970.20 × 90,468.77
  4. Step 4: Simplify right side
    165,920.27x = 20,714,651,562.06
  5. Step 5: Solve for x
    x = 20,714,651,562.06/165,920.27
  6. Step 6: Final answer
    x = 124,847.02

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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.