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Finding the Fourth Proportional to 149,873.10, 224,773.65 and 86,556.30

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Solution

The fourth proportional to 149,873.10, 224,773.65 and 86,556.30 is: 129,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,873.10 : 224,773.65 = 86,556.30 : x
  2. Step 2: Convert to fraction form
    149,873.10/224,773.65 = 86,556.30/x
  3. Step 3: Cross multiply
    149,873.10x = 224,773.65 × 86,556.30
  4. Step 4: Simplify right side
    149,873.10x = 19,455,575,481.50
  5. Step 5: Solve for x
    x = 19,455,575,481.50/149,873.10
  6. Step 6: Final answer
    x = 129,813.66

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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.