Home / 165,917.16-228,965.16-90,465.68

Finding the Fourth Proportional to 165,917.16, 228,965.16 and 90,465.68

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Solution

The fourth proportional to 165,917.16, 228,965.16 and 90,465.68 is: 124,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,917.16 : 228,965.16 = 90,465.68 : x
  2. Step 2: Convert to fraction form
    165,917.16/228,965.16 = 90,465.68/x
  3. Step 3: Cross multiply
    165,917.16x = 228,965.16 × 90,465.68
  4. Step 4: Simplify right side
    165,917.16x = 20,713,488,895.71
  5. Step 5: Solve for x
    x = 20,713,488,895.71/165,917.16
  6. Step 6: Final answer
    x = 124,842.35

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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.