Home / 193,639.11-289,837.05-103,456.46

Finding the Fourth Proportional to 193,639.11, 289,837.05 and 103,456.46

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Solution

The fourth proportional to 193,639.11, 289,837.05 and 103,456.46 is: 154,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,639.11 : 289,837.05 = 103,456.46 : x
  2. Step 2: Convert to fraction form
    193,639.11/289,837.05 = 103,456.46/x
  3. Step 3: Cross multiply
    193,639.11x = 289,837.05 × 103,456.46
  4. Step 4: Simplify right side
    193,639.11x = 29,985,513,720.66
  5. Step 5: Solve for x
    x = 29,985,513,720.66/193,639.11
  6. Step 6: Final answer
    x = 154,852.57

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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.