Home / 325,621.20-488,201.40-125,864.40

Finding the Fourth Proportional to 325,621.20, 488,201.40 and 125,864.40

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Solution

The fourth proportional to 325,621.20, 488,201.40 and 125,864.40 is: 188,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,621.20 : 488,201.40 = 125,864.40 : x
  2. Step 2: Convert to fraction form
    325,621.20/488,201.40 = 125,864.40/x
  3. Step 3: Cross multiply
    325,621.20x = 488,201.40 × 125,864.40
  4. Step 4: Simplify right side
    325,621.20x = 61,447,176,290.16
  5. Step 5: Solve for x
    x = 61,447,176,290.16/325,621.20
  6. Step 6: Final answer
    x = 188,707.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.