Home / 161,919.97-242,666.72-90,841.25

Finding the Fourth Proportional to 161,919.97, 242,666.72 and 90,841.25

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Solution

The fourth proportional to 161,919.97, 242,666.72 and 90,841.25 is: 136,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,919.97 : 242,666.72 = 90,841.25 : x
  2. Step 2: Convert to fraction form
    161,919.97/242,666.72 = 90,841.25/x
  3. Step 3: Cross multiply
    161,919.97x = 242,666.72 × 90,841.25
  4. Step 4: Simplify right side
    161,919.97x = 22,044,147,723.99
  5. Step 5: Solve for x
    x = 22,044,147,723.99/161,919.97
  6. Step 6: Final answer
    x = 136,142.25

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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.