Home / 197,805.68-272,942.04-112,911.20

Finding the Fourth Proportional to 197,805.68, 272,942.04 and 112,911.20

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Solution

The fourth proportional to 197,805.68, 272,942.04 and 112,911.20 is: 155,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,805.68 : 272,942.04 = 112,911.20 : x
  2. Step 2: Convert to fraction form
    197,805.68/272,942.04 = 112,911.20/x
  3. Step 3: Cross multiply
    197,805.68x = 272,942.04 × 112,911.20
  4. Step 4: Simplify right side
    197,805.68x = 30,818,213,266.85
  5. Step 5: Solve for x
    x = 30,818,213,266.85/197,805.68
  6. Step 6: Final answer
    x = 155,800.45

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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.