Home / 102,929.20-154,408.20-43,764.40

Finding the Fourth Proportional to 102,929.20, 154,408.20 and 43,764.40

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Solution

The fourth proportional to 102,929.20, 154,408.20 and 43,764.40 is: 65,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,929.20 : 154,408.20 = 43,764.40 : x
  2. Step 2: Convert to fraction form
    102,929.20/154,408.20 = 43,764.40/x
  3. Step 3: Cross multiply
    102,929.20x = 154,408.20 × 43,764.40
  4. Step 4: Simplify right side
    102,929.20x = 6,757,582,228.08
  5. Step 5: Solve for x
    x = 6,757,582,228.08/102,929.20
  6. Step 6: Final answer
    x = 65,652.72

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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.