Home / 165,732.67-228,711-90,281.17

Finding the Fourth Proportional to 165,732.67, 228,711 and 90,281.17

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Solution

The fourth proportional to 165,732.67, 228,711 and 90,281.17 is: 124,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,732.67 : 228,711 = 90,281.17 : x
  2. Step 2: Convert to fraction form
    165,732.67/228,711 = 90,281.17/x
  3. Step 3: Cross multiply
    165,732.67x = 228,711 × 90,281.17
  4. Step 4: Simplify right side
    165,732.67x = 20,648,296,671.87
  5. Step 5: Solve for x
    x = 20,648,296,671.87/165,732.67
  6. Step 6: Final answer
    x = 124,587.97

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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.