Home / 103,621.22-142,997.29-58,909.22

Finding the Fourth Proportional to 103,621.22, 142,997.29 and 58,909.22

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Solution

The fourth proportional to 103,621.22, 142,997.29 and 58,909.22 is: 81,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.22 : 142,997.29 = 58,909.22 : x
  2. Step 2: Convert to fraction form
    103,621.22/142,997.29 = 58,909.22/x
  3. Step 3: Cross multiply
    103,621.22x = 142,997.29 × 58,909.22
  4. Step 4: Simplify right side
    103,621.22x = 8,423,858,489.99
  5. Step 5: Solve for x
    x = 8,423,858,489.99/103,621.22
  6. Step 6: Final answer
    x = 81,294.73

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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.