Home / 165,612.20-228,545.70-90,161.24

Finding the Fourth Proportional to 165,612.20, 228,545.70 and 90,161.24

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Solution

The fourth proportional to 165,612.20, 228,545.70 and 90,161.24 is: 124,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612.20 : 228,545.70 = 90,161.24 : x
  2. Step 2: Convert to fraction form
    165,612.20/228,545.70 = 90,161.24/x
  3. Step 3: Cross multiply
    165,612.20x = 228,545.70 × 90,161.24
  4. Step 4: Simplify right side
    165,612.20x = 20,605,963,708.67
  5. Step 5: Solve for x
    x = 20,605,963,708.67/165,612.20
  6. Step 6: Final answer
    x = 124,422.98

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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.