Home / 104,218.90-143,821.47-58,911.55

Finding the Fourth Proportional to 104,218.90, 143,821.47 and 58,911.55

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Solution

The fourth proportional to 104,218.90, 143,821.47 and 58,911.55 is: 81,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,218.90 : 143,821.47 = 58,911.55 : x
  2. Step 2: Convert to fraction form
    104,218.90/143,821.47 = 58,911.55/x
  3. Step 3: Cross multiply
    104,218.90x = 143,821.47 × 58,911.55
  4. Step 4: Simplify right side
    104,218.90x = 8,472,745,720.98
  5. Step 5: Solve for x
    x = 8,472,745,720.98/104,218.90
  6. Step 6: Final answer
    x = 81,297.59

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1.5x scale

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.