Home / 197,178.11-272,105.78-112,303.07

Finding the Fourth Proportional to 197,178.11, 272,105.78 and 112,303.07

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Solution

The fourth proportional to 197,178.11, 272,105.78 and 112,303.07 is: 154,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,178.11 : 272,105.78 = 112,303.07 : x
  2. Step 2: Convert to fraction form
    197,178.11/272,105.78 = 112,303.07/x
  3. Step 3: Cross multiply
    197,178.11x = 272,105.78 × 112,303.07
  4. Step 4: Simplify right side
    197,178.11x = 30,558,312,536.70
  5. Step 5: Solve for x
    x = 30,558,312,536.70/197,178.11
  6. Step 6: Final answer
    x = 154,978.22

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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.