Home / 104,226.61-155,966.20-90,234.76

Finding the Fourth Proportional to 104,226.61, 155,966.20 and 90,234.76

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Solution

The fourth proportional to 104,226.61, 155,966.20 and 90,234.76 is: 135,028.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.61 : 155,966.20 = 90,234.76 : x
  2. Step 2: Convert to fraction form
    104,226.61/155,966.20 = 90,234.76/x
  3. Step 3: Cross multiply
    104,226.61x = 155,966.20 × 90,234.76
  4. Step 4: Simplify right side
    104,226.61x = 14,073,572,009.61
  5. Step 5: Solve for x
    x = 14,073,572,009.61/104,226.61
  6. Step 6: Final answer
    x = 135,028.59

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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.