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Finding the Fourth Proportional to 104,010.10, 156,015.15 and 86,514.10

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Solution

The fourth proportional to 104,010.10, 156,015.15 and 86,514.10 is: 129,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,010.10 : 156,015.15 = 86,514.10 : x
  2. Step 2: Convert to fraction form
    104,010.10/156,015.15 = 86,514.10/x
  3. Step 3: Cross multiply
    104,010.10x = 156,015.15 × 86,514.10
  4. Step 4: Simplify right side
    104,010.10x = 13,497,510,288.62
  5. Step 5: Solve for x
    x = 13,497,510,288.62/104,010.10
  6. Step 6: Final answer
    x = 129,771.15

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1.5x scale

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.