Home / 197,081.28-271,968-112,197.12

Finding the Fourth Proportional to 197,081.28, 271,968 and 112,197.12

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Solution

The fourth proportional to 197,081.28, 271,968 and 112,197.12 is: 154,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,081.28 : 271,968 = 112,197.12 : x
  2. Step 2: Convert to fraction form
    197,081.28/271,968 = 112,197.12/x
  3. Step 3: Cross multiply
    197,081.28x = 271,968 × 112,197.12
  4. Step 4: Simplify right side
    197,081.28x = 30,514,026,332.16
  5. Step 5: Solve for x
    x = 30,514,026,332.16/197,081.28
  6. Step 6: Final answer
    x = 154,829.65

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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.