Home / 165,780.60-228,777.15-90,329.10

Finding the Fourth Proportional to 165,780.60, 228,777.15 and 90,329.10

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Solution

The fourth proportional to 165,780.60, 228,777.15 and 90,329.10 is: 124,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,780.60 : 228,777.15 = 90,329.10 : x
  2. Step 2: Convert to fraction form
    165,780.60/228,777.15 = 90,329.10/x
  3. Step 3: Cross multiply
    165,780.60x = 228,777.15 × 90,329.10
  4. Step 4: Simplify right side
    165,780.60x = 20,665,234,060.07
  5. Step 5: Solve for x
    x = 20,665,234,060.07/165,780.60
  6. Step 6: Final answer
    x = 124,654.12

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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.