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Finding the Fourth Proportional to 140,435.64, 210,706.67 and 84,314.94

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Solution

The fourth proportional to 140,435.64, 210,706.67 and 84,314.94 is: 126,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,435.64 : 210,706.67 = 84,314.94 : x
  2. Step 2: Convert to fraction form
    140,435.64/210,706.67 = 84,314.94/x
  3. Step 3: Cross multiply
    140,435.64x = 210,706.67 × 84,314.94
  4. Step 4: Simplify right side
    140,435.64x = 17,765,719,817.08
  5. Step 5: Solve for x
    x = 17,765,719,817.08/140,435.64
  6. Step 6: Final answer
    x = 126,504.35

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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.