Home / 197,723-272,857.74-112,838.24

Finding the Fourth Proportional to 197,723, 272,857.74 and 112,838.24

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Solution

The fourth proportional to 197,723, 272,857.74 and 112,838.24 is: 155,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,723 : 272,857.74 = 112,838.24 : x
  2. Step 2: Convert to fraction form
    197,723/272,857.74 = 112,838.24/x
  3. Step 3: Cross multiply
    197,723x = 272,857.74 × 112,838.24
  4. Step 4: Simplify right side
    197,723x = 30,788,787,151.98
  5. Step 5: Solve for x
    x = 30,788,787,151.98/197,723
  6. Step 6: Final answer
    x = 155,716.77

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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.