Home / 103,680.33-143,083.53-58,373.89

Finding the Fourth Proportional to 103,680.33, 143,083.53 and 58,373.89

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Solution

The fourth proportional to 103,680.33, 143,083.53 and 58,373.89 is: 80,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.33 : 143,083.53 = 58,373.89 : x
  2. Step 2: Convert to fraction form
    103,680.33/143,083.53 = 58,373.89/x
  3. Step 3: Cross multiply
    103,680.33x = 143,083.53 × 58,373.89
  4. Step 4: Simplify right side
    103,680.33x = 8,352,342,241.03
  5. Step 5: Solve for x
    x = 8,352,342,241.03/103,680.33
  6. Step 6: Final answer
    x = 80,558.60

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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.