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Finding the Fourth Proportional to 140,439.66, 210,616.64 and 73,843.66

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Solution

The fourth proportional to 140,439.66, 210,616.64 and 73,843.66 is: 110,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,439.66 : 210,616.64 = 73,843.66 : x
  2. Step 2: Convert to fraction form
    140,439.66/210,616.64 = 73,843.66/x
  3. Step 3: Cross multiply
    140,439.66x = 210,616.64 × 73,843.66
  4. Step 4: Simplify right side
    140,439.66x = 15,552,702,686.03
  5. Step 5: Solve for x
    x = 15,552,702,686.03/140,439.66
  6. Step 6: Final answer
    x = 110,742.96

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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.