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Finding the Fourth Proportional to 141,314.10, 211,643.10 and 138,033.60

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Solution

The fourth proportional to 141,314.10, 211,643.10 and 138,033.60 is: 206,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,314.10 : 211,643.10 = 138,033.60 : x
  2. Step 2: Convert to fraction form
    141,314.10/211,643.10 = 138,033.60/x
  3. Step 3: Cross multiply
    141,314.10x = 211,643.10 × 138,033.60
  4. Step 4: Simplify right side
    141,314.10x = 29,213,859,008.16
  5. Step 5: Solve for x
    x = 29,213,859,008.16/141,314.10
  6. Step 6: Final answer
    x = 206,729.97

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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.