Home / 165,612.70-228,546.39-90,161.74

Finding the Fourth Proportional to 165,612.70, 228,546.39 and 90,161.74

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Solution

The fourth proportional to 165,612.70, 228,546.39 and 90,161.74 is: 124,423.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612.70 : 228,546.39 = 90,161.74 : x
  2. Step 2: Convert to fraction form
    165,612.70/228,546.39 = 90,161.74/x
  3. Step 3: Cross multiply
    165,612.70x = 228,546.39 × 90,161.74
  4. Step 4: Simplify right side
    165,612.70x = 20,606,140,193.12
  5. Step 5: Solve for x
    x = 20,606,140,193.12/165,612.70
  6. Step 6: Final answer
    x = 124,423.67

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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.