Home / 143,104.94-197,474.91-79,437.72

Finding the Fourth Proportional to 143,104.94, 197,474.91 and 79,437.72

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Solution

The fourth proportional to 143,104.94, 197,474.91 and 79,437.72 is: 109,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,104.94 : 197,474.91 = 79,437.72 : x
  2. Step 2: Convert to fraction form
    143,104.94/197,474.91 = 79,437.72/x
  3. Step 3: Cross multiply
    143,104.94x = 197,474.91 × 79,437.72
  4. Step 4: Simplify right side
    143,104.94x = 15,686,956,607.61
  5. Step 5: Solve for x
    x = 15,686,956,607.61/143,104.94
  6. Step 6: Final answer
    x = 109,618.56

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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.