Home / 165,481.16-228,364.99-90,030.20

Finding the Fourth Proportional to 165,481.16, 228,364.99 and 90,030.20

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Solution

The fourth proportional to 165,481.16, 228,364.99 and 90,030.20 is: 124,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,481.16 : 228,364.99 = 90,030.20 : x
  2. Step 2: Convert to fraction form
    165,481.16/228,364.99 = 90,030.20/x
  3. Step 3: Cross multiply
    165,481.16x = 228,364.99 × 90,030.20
  4. Step 4: Simplify right side
    165,481.16x = 20,559,744,355.80
  5. Step 5: Solve for x
    x = 20,559,744,355.80/165,481.16
  6. Step 6: Final answer
    x = 124,242.21

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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.