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Finding the Fourth Proportional to 153,241.14, 211,401.81 and 89,581.62

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Solution

The fourth proportional to 153,241.14, 211,401.81 and 89,581.62 is: 123,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,241.14 : 211,401.81 = 89,581.62 : x
  2. Step 2: Convert to fraction form
    153,241.14/211,401.81 = 89,581.62/x
  3. Step 3: Cross multiply
    153,241.14x = 211,401.81 × 89,581.62
  4. Step 4: Simplify right side
    153,241.14x = 18,937,716,610.73
  5. Step 5: Solve for x
    x = 18,937,716,610.73/153,241.14
  6. Step 6: Final answer
    x = 123,581.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.