Home / 165,730.98-228,708.81-90,279.48

Finding the Fourth Proportional to 165,730.98, 228,708.81 and 90,279.48

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Solution

The fourth proportional to 165,730.98, 228,708.81 and 90,279.48 is: 124,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,730.98 : 228,708.81 = 90,279.48 : x
  2. Step 2: Convert to fraction form
    165,730.98/228,708.81 = 90,279.48/x
  3. Step 3: Cross multiply
    165,730.98x = 228,708.81 × 90,279.48
  4. Step 4: Simplify right side
    165,730.98x = 20,647,712,438.22
  5. Step 5: Solve for x
    x = 20,647,712,438.22/165,730.98
  6. Step 6: Final answer
    x = 124,585.71

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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.