Home / 235,680.22-325,245.55-128,257.18

Finding the Fourth Proportional to 235,680.22, 325,245.55 and 128,257.18

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Solution

The fourth proportional to 235,680.22, 325,245.55 and 128,257.18 is: 176,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,680.22 : 325,245.55 = 128,257.18 : x
  2. Step 2: Convert to fraction form
    235,680.22/325,245.55 = 128,257.18/x
  3. Step 3: Cross multiply
    235,680.22x = 325,245.55 × 128,257.18
  4. Step 4: Simplify right side
    235,680.22x = 41,715,077,050.55
  5. Step 5: Solve for x
    x = 41,715,077,050.55/235,680.22
  6. Step 6: Final answer
    x = 176,998.63

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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.