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Finding the Fourth Proportional to 140,481.18, 210,722.01 and 57,375.18

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Solution

The fourth proportional to 140,481.18, 210,722.01 and 57,375.18 is: 86,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,481.18 : 210,722.01 = 57,375.18 : x
  2. Step 2: Convert to fraction form
    140,481.18/210,722.01 = 57,375.18/x
  3. Step 3: Cross multiply
    140,481.18x = 210,722.01 × 57,375.18
  4. Step 4: Simplify right side
    140,481.18x = 12,090,213,253.71
  5. Step 5: Solve for x
    x = 12,090,213,253.71/140,481.18
  6. Step 6: Final answer
    x = 86,062.87

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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.