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Finding the Fourth Proportional to 102,800.70, 154,103.85 and 60,713.10

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Solution

The fourth proportional to 102,800.70, 154,103.85 and 60,713.10 is: 91,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,800.70 : 154,103.85 = 60,713.10 : x
  2. Step 2: Convert to fraction form
    102,800.70/154,103.85 = 60,713.10/x
  3. Step 3: Cross multiply
    102,800.70x = 154,103.85 × 60,713.10
  4. Step 4: Simplify right side
    102,800.70x = 9,356,122,455.44
  5. Step 5: Solve for x
    x = 9,356,122,455.44/102,800.70
  6. Step 6: Final answer
    x = 91,012.24

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1.5x scale

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.