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Finding the Fourth Proportional to 140,215.64, 210,110.64 and 102,800.62

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Solution

The fourth proportional to 140,215.64, 210,110.64 and 102,800.62 is: 154,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,215.64 : 210,110.64 = 102,800.62 : x
  2. Step 2: Convert to fraction form
    140,215.64/210,110.64 = 102,800.62/x
  3. Step 3: Cross multiply
    140,215.64x = 210,110.64 × 102,800.62
  4. Step 4: Simplify right side
    140,215.64x = 21,599,504,060.60
  5. Step 5: Solve for x
    x = 21,599,504,060.60/140,215.64
  6. Step 6: Final answer
    x = 154,044.90

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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.