Home / 165,783.43-228,781.17-90,331.93

Finding the Fourth Proportional to 165,783.43, 228,781.17 and 90,331.93

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Solution

The fourth proportional to 165,783.43, 228,781.17 and 90,331.93 is: 124,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,783.43 : 228,781.17 = 90,331.93 : x
  2. Step 2: Convert to fraction form
    165,783.43/228,781.17 = 90,331.93/x
  3. Step 3: Cross multiply
    165,783.43x = 228,781.17 × 90,331.93
  4. Step 4: Simplify right side
    165,783.43x = 20,666,244,633.76
  5. Step 5: Solve for x
    x = 20,666,244,633.76/165,783.43
  6. Step 6: Final answer
    x = 124,658.08

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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.