Home / 192,645.96-289,089.23-138,616.13

Finding the Fourth Proportional to 192,645.96, 289,089.23 and 138,616.13

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Solution

The fourth proportional to 192,645.96, 289,089.23 and 138,616.13 is: 208,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,645.96 : 289,089.23 = 138,616.13 : x
  2. Step 2: Convert to fraction form
    192,645.96/289,089.23 = 138,616.13/x
  3. Step 3: Cross multiply
    192,645.96x = 289,089.23 × 138,616.13
  4. Step 4: Simplify right side
    192,645.96x = 40,072,428,148.75
  5. Step 5: Solve for x
    x = 40,072,428,148.75/192,645.96
  6. Step 6: Final answer
    x = 208,010.74

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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.