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Finding the Fourth Proportional to 103,433.70, 155,150.55 and 102,777.60

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Solution

The fourth proportional to 103,433.70, 155,150.55 and 102,777.60 is: 154,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.70 : 155,150.55 = 102,777.60 : x
  2. Step 2: Convert to fraction form
    103,433.70/155,150.55 = 102,777.60/x
  3. Step 3: Cross multiply
    103,433.70x = 155,150.55 × 102,777.60
  4. Step 4: Simplify right side
    103,433.70x = 15,946,001,167.68
  5. Step 5: Solve for x
    x = 15,946,001,167.68/103,433.70
  6. Step 6: Final answer
    x = 154,166.40

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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.