Home / 103,024.70-154,682.85-80,863.10

Finding the Fourth Proportional to 103,024.70, 154,682.85 and 80,863.10

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Solution

The fourth proportional to 103,024.70, 154,682.85 and 80,863.10 is: 121,409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,024.70 : 154,682.85 = 80,863.10 : x
  2. Step 2: Convert to fraction form
    103,024.70/154,682.85 = 80,863.10/x
  3. Step 3: Cross multiply
    103,024.70x = 154,682.85 × 80,863.10
  4. Step 4: Simplify right side
    103,024.70x = 12,508,134,767.84
  5. Step 5: Solve for x
    x = 12,508,134,767.84/103,024.70
  6. Step 6: Final answer
    x = 121,409.09

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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.