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Finding the Fourth Proportional to 140,469.90, 210,705.02 and 57,363.90

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Solution

The fourth proportional to 140,469.90, 210,705.02 and 57,363.90 is: 86,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,469.90 : 210,705.02 = 57,363.90 : x
  2. Step 2: Convert to fraction form
    140,469.90/210,705.02 = 57,363.90/x
  3. Step 3: Cross multiply
    140,469.90x = 210,705.02 × 57,363.90
  4. Step 4: Simplify right side
    140,469.90x = 12,086,861,696.78
  5. Step 5: Solve for x
    x = 12,086,861,696.78/140,469.90
  6. Step 6: Final answer
    x = 86,045.92

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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.