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Finding the Fourth Proportional to 145,354.89, 200,544.68 and 84,881.91

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Solution

The fourth proportional to 145,354.89, 200,544.68 and 84,881.91 is: 117,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,354.89 : 200,544.68 = 84,881.91 : x
  2. Step 2: Convert to fraction form
    145,354.89/200,544.68 = 84,881.91/x
  3. Step 3: Cross multiply
    145,354.89x = 200,544.68 × 84,881.91
  4. Step 4: Simplify right side
    145,354.89x = 17,022,615,054.33
  5. Step 5: Solve for x
    x = 17,022,615,054.33/145,354.89
  6. Step 6: Final answer
    x = 117,110.71

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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.