Home / 197,740.49-272,905.85-111,703.10

Finding the Fourth Proportional to 197,740.49, 272,905.85 and 111,703.10

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Solution

The fourth proportional to 197,740.49, 272,905.85 and 111,703.10 is: 154,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,740.49 : 272,905.85 = 111,703.10 : x
  2. Step 2: Convert to fraction form
    197,740.49/272,905.85 = 111,703.10/x
  3. Step 3: Cross multiply
    197,740.49x = 272,905.85 × 111,703.10
  4. Step 4: Simplify right side
    197,740.49x = 30,484,427,530.09
  5. Step 5: Solve for x
    x = 30,484,427,530.09/197,740.49
  6. Step 6: Final answer
    x = 154,163.81

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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.