Home / 103,586.11-142,961.03-58,265.80

Finding the Fourth Proportional to 103,586.11, 142,961.03 and 58,265.80

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Solution

The fourth proportional to 103,586.11, 142,961.03 and 58,265.80 is: 80,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,586.11 : 142,961.03 = 58,265.80 : x
  2. Step 2: Convert to fraction form
    103,586.11/142,961.03 = 58,265.80/x
  3. Step 3: Cross multiply
    103,586.11x = 142,961.03 × 58,265.80
  4. Step 4: Simplify right side
    103,586.11x = 8,329,738,781.77
  5. Step 5: Solve for x
    x = 8,329,738,781.77/103,586.11
  6. Step 6: Final answer
    x = 80,413.67

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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.