Home / 165,612.90-228,546.45-90,161.40

Finding the Fourth Proportional to 165,612.90, 228,546.45 and 90,161.40

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Solution

The fourth proportional to 165,612.90, 228,546.45 and 90,161.40 is: 124,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612.90 : 228,546.45 = 90,161.40 : x
  2. Step 2: Convert to fraction form
    165,612.90/228,546.45 = 90,161.40/x
  3. Step 3: Cross multiply
    165,612.90x = 228,546.45 × 90,161.40
  4. Step 4: Simplify right side
    165,612.90x = 20,606,067,897.03
  5. Step 5: Solve for x
    x = 20,606,067,897.03/165,612.90
  6. Step 6: Final answer
    x = 124,423.08

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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.