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Finding the Fourth Proportional to 102,562.80, 154,002.60 and 55,906.80

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Solution

The fourth proportional to 102,562.80, 154,002.60 and 55,906.80 is: 83,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,562.80 : 154,002.60 = 55,906.80 : x
  2. Step 2: Convert to fraction form
    102,562.80/154,002.60 = 55,906.80/x
  3. Step 3: Cross multiply
    102,562.80x = 154,002.60 × 55,906.80
  4. Step 4: Simplify right side
    102,562.80x = 8,609,792,557.68
  5. Step 5: Solve for x
    x = 8,609,792,557.68/102,562.80
  6. Step 6: Final answer
    x = 83,946.54

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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.