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Finding the Fourth Proportional to 141,322.40, 211,983.60 and 82,224.80

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Solution

The fourth proportional to 141,322.40, 211,983.60 and 82,224.80 is: 123,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,322.40 : 211,983.60 = 82,224.80 : x
  2. Step 2: Convert to fraction form
    141,322.40/211,983.60 = 82,224.80/x
  3. Step 3: Cross multiply
    141,322.40x = 211,983.60 × 82,224.80
  4. Step 4: Simplify right side
    141,322.40x = 17,430,309,113.28
  5. Step 5: Solve for x
    x = 17,430,309,113.28/141,322.40
  6. Step 6: Final answer
    x = 123,337.20

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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.