Home / 102,928.20-154,226.70-58,422.60

Finding the Fourth Proportional to 102,928.20, 154,226.70 and 58,422.60

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Solution

The fourth proportional to 102,928.20, 154,226.70 and 58,422.60 is: 87,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,928.20 : 154,226.70 = 58,422.60 : x
  2. Step 2: Convert to fraction form
    102,928.20/154,226.70 = 58,422.60/x
  3. Step 3: Cross multiply
    102,928.20x = 154,226.70 × 58,422.60
  4. Step 4: Simplify right side
    102,928.20x = 9,010,324,803.42
  5. Step 5: Solve for x
    x = 9,010,324,803.42/102,928.20
  6. Step 6: Final answer
    x = 87,539.90

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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.