Home / 235,785.20-325,373.62-128,353

Finding the Fourth Proportional to 235,785.20, 325,373.62 and 128,353

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Solution

The fourth proportional to 235,785.20, 325,373.62 and 128,353 is: 177,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,785.20 : 325,373.62 = 128,353 : x
  2. Step 2: Convert to fraction form
    235,785.20/325,373.62 = 128,353/x
  3. Step 3: Cross multiply
    235,785.20x = 325,373.62 × 128,353
  4. Step 4: Simplify right side
    235,785.20x = 41,762,680,247.86
  5. Step 5: Solve for x
    x = 41,762,680,247.86/235,785.20
  6. Step 6: Final answer
    x = 177,121.72

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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.