Home / 197,723.89-272,855.59-107,079.12

Finding the Fourth Proportional to 197,723.89, 272,855.59 and 107,079.12

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Solution

The fourth proportional to 197,723.89, 272,855.59 and 107,079.12 is: 147,767.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,723.89 : 272,855.59 = 107,079.12 : x
  2. Step 2: Convert to fraction form
    197,723.89/272,855.59 = 107,079.12/x
  3. Step 3: Cross multiply
    197,723.89x = 272,855.59 × 107,079.12
  4. Step 4: Simplify right side
    197,723.89x = 29,217,135,775.69
  5. Step 5: Solve for x
    x = 29,217,135,775.69/197,723.89
  6. Step 6: Final answer
    x = 147,767.35

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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.