Home / 161,609.82-242,302.10-71,603.61

Finding the Fourth Proportional to 161,609.82, 242,302.10 and 71,603.61

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Solution

The fourth proportional to 161,609.82, 242,302.10 and 71,603.61 is: 107,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,609.82 : 242,302.10 = 71,603.61 : x
  2. Step 2: Convert to fraction form
    161,609.82/242,302.10 = 71,603.61/x
  3. Step 3: Cross multiply
    161,609.82x = 242,302.10 × 71,603.61
  4. Step 4: Simplify right side
    161,609.82x = 17,349,704,712.56
  5. Step 5: Solve for x
    x = 17,349,704,712.56/161,609.82
  6. Step 6: Final answer
    x = 107,355.51

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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.