Home / 197,821.12-272,993.04-112,936.48

Finding the Fourth Proportional to 197,821.12, 272,993.04 and 112,936.48

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Solution

The fourth proportional to 197,821.12, 272,993.04 and 112,936.48 is: 155,852.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,821.12 : 272,993.04 = 112,936.48 : x
  2. Step 2: Convert to fraction form
    197,821.12/272,993.04 = 112,936.48/x
  3. Step 3: Cross multiply
    197,821.12x = 272,993.04 × 112,936.48
  4. Step 4: Simplify right side
    197,821.12x = 30,830,873,002.10
  5. Step 5: Solve for x
    x = 30,830,873,002.10/197,821.12
  6. Step 6: Final answer
    x = 155,852.28

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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.