Home / 165,819.52-228,830.96-90,368

Finding the Fourth Proportional to 165,819.52, 228,830.96 and 90,368

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Solution

The fourth proportional to 165,819.52, 228,830.96 and 90,368 is: 124,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,819.52 : 228,830.96 = 90,368 : x
  2. Step 2: Convert to fraction form
    165,819.52/228,830.96 = 90,368/x
  3. Step 3: Cross multiply
    165,819.52x = 228,830.96 × 90,368
  4. Step 4: Simplify right side
    165,819.52x = 20,678,996,193.28
  5. Step 5: Solve for x
    x = 20,678,996,193.28/165,819.52
  6. Step 6: Final answer
    x = 124,707.85

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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.