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Finding the Fourth Proportional to 140,161.65, 210,270.17 and 51,415.92

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Solution

The fourth proportional to 140,161.65, 210,270.17 and 51,415.92 is: 77,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,161.65 : 210,270.17 = 51,415.92 : x
  2. Step 2: Convert to fraction form
    140,161.65/210,270.17 = 51,415.92/x
  3. Step 3: Cross multiply
    140,161.65x = 210,270.17 × 51,415.92
  4. Step 4: Simplify right side
    140,161.65x = 10,811,233,982.03
  5. Step 5: Solve for x
    x = 10,811,233,982.03/140,161.65
  6. Step 6: Final answer
    x = 77,134.04

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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.