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Finding the Fourth Proportional to 103,433.55, 155,168.55 and 36,912.30

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Solution

The fourth proportional to 103,433.55, 155,168.55 and 36,912.30 is: 55,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.55 : 155,168.55 = 36,912.30 : x
  2. Step 2: Convert to fraction form
    103,433.55/155,168.55 = 36,912.30/x
  3. Step 3: Cross multiply
    103,433.55x = 155,168.55 × 36,912.30
  4. Step 4: Simplify right side
    103,433.55x = 5,727,628,068.17
  5. Step 5: Solve for x
    x = 5,727,628,068.17/103,433.55
  6. Step 6: Final answer
    x = 55,374.95

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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.