Home / 197,103.75-272,004.39-107,679.75

Finding the Fourth Proportional to 197,103.75, 272,004.39 and 107,679.75

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Solution

The fourth proportional to 197,103.75, 272,004.39 and 107,679.75 is: 148,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,103.75 : 272,004.39 = 107,679.75 : x
  2. Step 2: Convert to fraction form
    197,103.75/272,004.39 = 107,679.75/x
  3. Step 3: Cross multiply
    197,103.75x = 272,004.39 × 107,679.75
  4. Step 4: Simplify right side
    197,103.75x = 29,289,364,714.10
  5. Step 5: Solve for x
    x = 29,289,364,714.10/197,103.75
  6. Step 6: Final answer
    x = 148,598.72

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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.