Home / 103,861.62-143,333.19-58,541.49

Finding the Fourth Proportional to 103,861.62, 143,333.19 and 58,541.49

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Solution

The fourth proportional to 103,861.62, 143,333.19 and 58,541.49 is: 80,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,861.62 : 143,333.19 = 58,541.49 : x
  2. Step 2: Convert to fraction form
    103,861.62/143,333.19 = 58,541.49/x
  3. Step 3: Cross multiply
    103,861.62x = 143,333.19 × 58,541.49
  4. Step 4: Simplify right side
    103,861.62x = 8,390,938,509.05
  5. Step 5: Solve for x
    x = 8,390,938,509.05/103,861.62
  6. Step 6: Final answer
    x = 80,789.60

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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.