Home / 197,821.77-272,994.08-107,178.36

Finding the Fourth Proportional to 197,821.77, 272,994.08 and 107,178.36

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Solution

The fourth proportional to 197,821.77, 272,994.08 and 107,178.36 is: 147,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,821.77 : 272,994.08 = 107,178.36 : x
  2. Step 2: Convert to fraction form
    197,821.77/272,994.08 = 107,178.36/x
  3. Step 3: Cross multiply
    197,821.77x = 272,994.08 × 107,178.36
  4. Step 4: Simplify right side
    197,821.77x = 29,259,057,248.22
  5. Step 5: Solve for x
    x = 29,259,057,248.22/197,821.77
  6. Step 6: Final answer
    x = 147,906.15

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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.