Home / 103,909.16-143,396.22-58,589.36

Finding the Fourth Proportional to 103,909.16, 143,396.22 and 58,589.36

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Solution

The fourth proportional to 103,909.16, 143,396.22 and 58,589.36 is: 80,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,909.16 : 143,396.22 = 58,589.36 : x
  2. Step 2: Convert to fraction form
    103,909.16/143,396.22 = 58,589.36/x
  3. Step 3: Cross multiply
    103,909.16x = 143,396.22 × 58,589.36
  4. Step 4: Simplify right side
    103,909.16x = 8,401,492,039.24
  5. Step 5: Solve for x
    x = 8,401,492,039.24/103,909.16
  6. Step 6: Final answer
    x = 80,854.20

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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.