Home / 103,801.40-143,216.30-58,463.54

Finding the Fourth Proportional to 103,801.40, 143,216.30 and 58,463.54

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Solution

The fourth proportional to 103,801.40, 143,216.30 and 58,463.54 is: 80,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,801.40 : 143,216.30 = 58,463.54 : x
  2. Step 2: Convert to fraction form
    103,801.40/143,216.30 = 58,463.54/x
  3. Step 3: Cross multiply
    103,801.40x = 143,216.30 × 58,463.54
  4. Step 4: Simplify right side
    103,801.40x = 8,372,930,875.30
  5. Step 5: Solve for x
    x = 8,372,930,875.30/103,801.40
  6. Step 6: Final answer
    x = 80,662.99

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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.