Home / 103,354.48-142,620.43-58,028.90

Finding the Fourth Proportional to 103,354.48, 142,620.43 and 58,028.90

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Solution

The fourth proportional to 103,354.48, 142,620.43 and 58,028.90 is: 80,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,354.48 : 142,620.43 = 58,028.90 : x
  2. Step 2: Convert to fraction form
    103,354.48/142,620.43 = 58,028.90/x
  3. Step 3: Cross multiply
    103,354.48x = 142,620.43 × 58,028.90
  4. Step 4: Simplify right side
    103,354.48x = 8,276,106,380.28
  5. Step 5: Solve for x
    x = 8,276,106,380.28/103,354.48
  6. Step 6: Final answer
    x = 80,074.97

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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.