Home / 235,840.22-325,465.34-128,416.13

Finding the Fourth Proportional to 235,840.22, 325,465.34 and 128,416.13

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Solution

The fourth proportional to 235,840.22, 325,465.34 and 128,416.13 is: 177,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,840.22 : 325,465.34 = 128,416.13 : x
  2. Step 2: Convert to fraction form
    235,840.22/325,465.34 = 128,416.13/x
  3. Step 3: Cross multiply
    235,840.22x = 325,465.34 × 128,416.13
  4. Step 4: Simplify right side
    235,840.22x = 41,794,998,769.85
  5. Step 5: Solve for x
    x = 41,794,998,769.85/235,840.22
  6. Step 6: Final answer
    x = 177,217.43

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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.