Home / 197,728.68-272,865.64-107,085.42

Finding the Fourth Proportional to 197,728.68, 272,865.64 and 107,085.42

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Solution

The fourth proportional to 197,728.68, 272,865.64 and 107,085.42 is: 147,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,728.68 : 272,865.64 = 107,085.42 : x
  2. Step 2: Convert to fraction form
    197,728.68/272,865.64 = 107,085.42/x
  3. Step 3: Cross multiply
    197,728.68x = 272,865.64 × 107,085.42
  4. Step 4: Simplify right side
    197,728.68x = 29,219,931,662.97
  5. Step 5: Solve for x
    x = 29,219,931,662.97/197,728.68
  6. Step 6: Final answer
    x = 147,777.91

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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.