Home / 103,998.23-143,517.53-58,675.80

Finding the Fourth Proportional to 103,998.23, 143,517.53 and 58,675.80

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Solution

The fourth proportional to 103,998.23, 143,517.53 and 58,675.80 is: 80,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,998.23 : 143,517.53 = 58,675.80 : x
  2. Step 2: Convert to fraction form
    103,998.23/143,517.53 = 58,675.80/x
  3. Step 3: Cross multiply
    103,998.23x = 143,517.53 × 58,675.80
  4. Step 4: Simplify right side
    103,998.23x = 8,421,005,593.40
  5. Step 5: Solve for x
    x = 8,421,005,593.40/103,998.23
  6. Step 6: Final answer
    x = 80,972.59

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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.