Home / 165,705.80-228,673.88-90,254.30

Finding the Fourth Proportional to 165,705.80, 228,673.88 and 90,254.30

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Solution

The fourth proportional to 165,705.80, 228,673.88 and 90,254.30 is: 124,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,705.80 : 228,673.88 = 90,254.30 : x
  2. Step 2: Convert to fraction form
    165,705.80/228,673.88 = 90,254.30/x
  3. Step 3: Cross multiply
    165,705.80x = 228,673.88 × 90,254.30
  4. Step 4: Simplify right side
    165,705.80x = 20,638,800,967.68
  5. Step 5: Solve for x
    x = 20,638,800,967.68/165,705.80
  6. Step 6: Final answer
    x = 124,550.87

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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.