Home / 193,299.10-289,832.18-86,663.77

Finding the Fourth Proportional to 193,299.10, 289,832.18 and 86,663.77

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Solution

The fourth proportional to 193,299.10, 289,832.18 and 86,663.77 is: 129,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,299.10 : 289,832.18 = 86,663.77 : x
  2. Step 2: Convert to fraction form
    193,299.10/289,832.18 = 86,663.77/x
  3. Step 3: Cross multiply
    193,299.10x = 289,832.18 × 86,663.77
  4. Step 4: Simplify right side
    193,299.10x = 25,117,948,228.22
  5. Step 5: Solve for x
    x = 25,117,948,228.22/193,299.10
  6. Step 6: Final answer
    x = 129,943.43

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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.