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Finding the Fourth Proportional to 149,157.33, 205,790.67 and 84,615.86

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Solution

The fourth proportional to 149,157.33, 205,790.67 and 84,615.86 is: 116,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,157.33 : 205,790.67 = 84,615.86 : x
  2. Step 2: Convert to fraction form
    149,157.33/205,790.67 = 84,615.86/x
  3. Step 3: Cross multiply
    149,157.33x = 205,790.67 × 84,615.86
  4. Step 4: Simplify right side
    149,157.33x = 17,413,154,522.03
  5. Step 5: Solve for x
    x = 17,413,154,522.03/149,157.33
  6. Step 6: Final answer
    x = 116,743.54

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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.