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Finding the Fourth Proportional to 140,587, 210,880.32 and 45,817.03

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Solution

The fourth proportional to 140,587, 210,880.32 and 45,817.03 is: 68,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,587 : 210,880.32 = 45,817.03 : x
  2. Step 2: Convert to fraction form
    140,587/210,880.32 = 45,817.03/x
  3. Step 3: Cross multiply
    140,587x = 210,880.32 × 45,817.03
  4. Step 4: Simplify right side
    140,587x = 9,661,909,947.85
  5. Step 5: Solve for x
    x = 9,661,909,947.85/140,587
  6. Step 6: Final answer
    x = 68,725.49

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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.