Home / 143,000.94-197,338.68-79,337.37

Finding the Fourth Proportional to 143,000.94, 197,338.68 and 79,337.37

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Solution

The fourth proportional to 143,000.94, 197,338.68 and 79,337.37 is: 109,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,000.94 : 197,338.68 = 79,337.37 : x
  2. Step 2: Convert to fraction form
    143,000.94/197,338.68 = 79,337.37/x
  3. Step 3: Cross multiply
    143,000.94x = 197,338.68 × 79,337.37
  4. Step 4: Simplify right side
    143,000.94x = 15,656,331,870.47
  5. Step 5: Solve for x
    x = 15,656,331,870.47/143,000.94
  6. Step 6: Final answer
    x = 109,484.12

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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.