Home / 197,272.91-272,171.30-111,221.12

Finding the Fourth Proportional to 197,272.91, 272,171.30 and 111,221.12

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Solution

The fourth proportional to 197,272.91, 272,171.30 and 111,221.12 is: 153,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,272.91 : 272,171.30 = 111,221.12 : x
  2. Step 2: Convert to fraction form
    197,272.91/272,171.30 = 111,221.12/x
  3. Step 3: Cross multiply
    197,272.91x = 272,171.30 × 111,221.12
  4. Step 4: Simplify right side
    197,272.91x = 30,271,194,900.89
  5. Step 5: Solve for x
    x = 30,271,194,900.89/197,272.91
  6. Step 6: Final answer
    x = 153,448.32

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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.