Home / 165,622.53-228,559.10-90,171.03

Finding the Fourth Proportional to 165,622.53, 228,559.10 and 90,171.03

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Solution

The fourth proportional to 165,622.53, 228,559.10 and 90,171.03 is: 124,436.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,622.53 : 228,559.10 = 90,171.03 : x
  2. Step 2: Convert to fraction form
    165,622.53/228,559.10 = 90,171.03/x
  3. Step 3: Cross multiply
    165,622.53x = 228,559.10 × 90,171.03
  4. Step 4: Simplify right side
    165,622.53x = 20,609,409,012.02
  5. Step 5: Solve for x
    x = 20,609,409,012.02/165,622.53
  6. Step 6: Final answer
    x = 124,436.02

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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.