Home / 161,581.35-242,247.14-81,578.14

Finding the Fourth Proportional to 161,581.35, 242,247.14 and 81,578.14

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Solution

The fourth proportional to 161,581.35, 242,247.14 and 81,578.14 is: 122,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,581.35 : 242,247.14 = 81,578.14 : x
  2. Step 2: Convert to fraction form
    161,581.35/242,247.14 = 81,578.14/x
  3. Step 3: Cross multiply
    161,581.35x = 242,247.14 × 81,578.14
  4. Step 4: Simplify right side
    161,581.35x = 19,762,070,393.93
  5. Step 5: Solve for x
    x = 19,762,070,393.93/161,581.35
  6. Step 6: Final answer
    x = 122,304.15

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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.