Home / 193,000.11-289,498.05-79,122.51

Finding the Fourth Proportional to 193,000.11, 289,498.05 and 79,122.51

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Solution

The fourth proportional to 193,000.11, 289,498.05 and 79,122.51 is: 118,682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,000.11 : 289,498.05 = 79,122.51 : x
  2. Step 2: Convert to fraction form
    193,000.11/289,498.05 = 79,122.51/x
  3. Step 3: Cross multiply
    193,000.11x = 289,498.05 × 79,122.51
  4. Step 4: Simplify right side
    193,000.11x = 22,905,812,356.11
  5. Step 5: Solve for x
    x = 22,905,812,356.11/193,000.11
  6. Step 6: Final answer
    x = 118,682.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.