Home / 131,575.87-181,563.73-74,212.03

Finding the Fourth Proportional to 131,575.87, 181,563.73 and 74,212.03

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Solution

The fourth proportional to 131,575.87, 181,563.73 and 74,212.03 is: 102,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,575.87 : 181,563.73 = 74,212.03 : x
  2. Step 2: Convert to fraction form
    131,575.87/181,563.73 = 74,212.03/x
  3. Step 3: Cross multiply
    131,575.87x = 181,563.73 × 74,212.03
  4. Step 4: Simplify right side
    131,575.87x = 13,474,212,977.67
  5. Step 5: Solve for x
    x = 13,474,212,977.67/131,575.87
  6. Step 6: Final answer
    x = 102,406.41

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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.