Home / 165,311.56-228,129.78-89,860.60

Finding the Fourth Proportional to 165,311.56, 228,129.78 and 89,860.60

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Solution

The fourth proportional to 165,311.56, 228,129.78 and 89,860.60 is: 124,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,311.56 : 228,129.78 = 89,860.60 : x
  2. Step 2: Convert to fraction form
    165,311.56/228,129.78 = 89,860.60/x
  3. Step 3: Cross multiply
    165,311.56x = 228,129.78 × 89,860.60
  4. Step 4: Simplify right side
    165,311.56x = 20,499,878,908.67
  5. Step 5: Solve for x
    x = 20,499,878,908.67/165,311.56
  6. Step 6: Final answer
    x = 124,007.53

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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.