Home / 165,930.93-228,984.84-90,479.43

Finding the Fourth Proportional to 165,930.93, 228,984.84 and 90,479.43

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Solution

The fourth proportional to 165,930.93, 228,984.84 and 90,479.43 is: 124,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,930.93 : 228,984.84 = 90,479.43 : x
  2. Step 2: Convert to fraction form
    165,930.93/228,984.84 = 90,479.43/x
  3. Step 3: Cross multiply
    165,930.93x = 228,984.84 × 90,479.43
  4. Step 4: Simplify right side
    165,930.93x = 20,718,417,801.84
  5. Step 5: Solve for x
    x = 20,718,417,801.84/165,930.93
  6. Step 6: Final answer
    x = 124,861.70

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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.