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Finding the Fourth Proportional to 145,963.60, 218,772.60 and 61,723.60

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Solution

The fourth proportional to 145,963.60, 218,772.60 and 61,723.60 is: 92,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,963.60 : 218,772.60 = 61,723.60 : x
  2. Step 2: Convert to fraction form
    145,963.60/218,772.60 = 61,723.60/x
  3. Step 3: Cross multiply
    145,963.60x = 218,772.60 × 61,723.60
  4. Step 4: Simplify right side
    145,963.60x = 13,503,432,453.36
  5. Step 5: Solve for x
    x = 13,503,432,453.36/145,963.60
  6. Step 6: Final answer
    x = 92,512.33

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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.