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Finding the Fourth Proportional to 103,890.80, 155,844.30 and 44,728.40

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Solution

The fourth proportional to 103,890.80, 155,844.30 and 44,728.40 is: 67,096.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890.80 : 155,844.30 = 44,728.40 : x
  2. Step 2: Convert to fraction form
    103,890.80/155,844.30 = 44,728.40/x
  3. Step 3: Cross multiply
    103,890.80x = 155,844.30 × 44,728.40
  4. Step 4: Simplify right side
    103,890.80x = 6,970,666,188.12
  5. Step 5: Solve for x
    x = 6,970,666,188.12/103,890.80
  6. Step 6: Final answer
    x = 67,096.09

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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.