Home / 165,842.24-228,856.20-90,389.12

Finding the Fourth Proportional to 165,842.24, 228,856.20 and 90,389.12

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Solution

The fourth proportional to 165,842.24, 228,856.20 and 90,389.12 is: 124,733.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,842.24 : 228,856.20 = 90,389.12 : x
  2. Step 2: Convert to fraction form
    165,842.24/228,856.20 = 90,389.12/x
  3. Step 3: Cross multiply
    165,842.24x = 228,856.20 × 90,389.12
  4. Step 4: Simplify right side
    165,842.24x = 20,686,110,524.54
  5. Step 5: Solve for x
    x = 20,686,110,524.54/165,842.24
  6. Step 6: Final answer
    x = 124,733.67

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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.