Home / 197,873.12-296,698.64-85,483.20

Finding the Fourth Proportional to 197,873.12, 296,698.64 and 85,483.20

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Solution

The fourth proportional to 197,873.12, 296,698.64 and 85,483.20 is: 128,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,873.12 : 296,698.64 = 85,483.20 : x
  2. Step 2: Convert to fraction form
    197,873.12/296,698.64 = 85,483.20/x
  3. Step 3: Cross multiply
    197,873.12x = 296,698.64 × 85,483.20
  4. Step 4: Simplify right side
    197,873.12x = 25,362,749,182.85
  5. Step 5: Solve for x
    x = 25,362,749,182.85/197,873.12
  6. Step 6: Final answer
    x = 128,176.83

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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.