Home / 165,730.64-228,708.24-90,279.12

Finding the Fourth Proportional to 165,730.64, 228,708.24 and 90,279.12

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Solution

The fourth proportional to 165,730.64, 228,708.24 and 90,279.12 is: 124,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,730.64 : 228,708.24 = 90,279.12 : x
  2. Step 2: Convert to fraction form
    165,730.64/228,708.24 = 90,279.12/x
  3. Step 3: Cross multiply
    165,730.64x = 228,708.24 × 90,279.12
  4. Step 4: Simplify right side
    165,730.64x = 20,647,578,643.95
  5. Step 5: Solve for x
    x = 20,647,578,643.95/165,730.64
  6. Step 6: Final answer
    x = 124,585.16

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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.