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Finding the Fourth Proportional to 140,586, 210,878.82 and 45,816.03

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Solution

The fourth proportional to 140,586, 210,878.82 and 45,816.03 is: 68,723.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,586 : 210,878.82 = 45,816.03 : x
  2. Step 2: Convert to fraction form
    140,586/210,878.82 = 45,816.03/x
  3. Step 3: Cross multiply
    140,586x = 210,878.82 × 45,816.03
  4. Step 4: Simplify right side
    140,586x = 9,661,630,343.48
  5. Step 5: Solve for x
    x = 9,661,630,343.48/140,586
  6. Step 6: Final answer
    x = 68,723.99

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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.