Home / 197,143.94-272,064.24-109,931.05

Finding the Fourth Proportional to 197,143.94, 272,064.24 and 109,931.05

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Solution

The fourth proportional to 197,143.94, 272,064.24 and 109,931.05 is: 151,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,143.94 : 272,064.24 = 109,931.05 : x
  2. Step 2: Convert to fraction form
    197,143.94/272,064.24 = 109,931.05/x
  3. Step 3: Cross multiply
    197,143.94x = 272,064.24 × 109,931.05
  4. Step 4: Simplify right side
    197,143.94x = 29,908,306,932.99
  5. Step 5: Solve for x
    x = 29,908,306,932.99/197,143.94
  6. Step 6: Final answer
    x = 151,707.97

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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.