Home / 104,226.86-155,966.57-90,235.01

Finding the Fourth Proportional to 104,226.86, 155,966.57 and 90,235.01

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Solution

The fourth proportional to 104,226.86, 155,966.57 and 90,235.01 is: 135,028.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.86 : 155,966.57 = 90,235.01 : x
  2. Step 2: Convert to fraction form
    104,226.86/155,966.57 = 90,235.01/x
  3. Step 3: Cross multiply
    104,226.86x = 155,966.57 × 90,235.01
  4. Step 4: Simplify right side
    104,226.86x = 14,073,645,003.62
  5. Step 5: Solve for x
    x = 14,073,645,003.62/104,226.86
  6. Step 6: Final answer
    x = 135,028.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.