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Finding the Fourth Proportional to 149,915.35, 224,991.03 and 69,912.15

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Solution

The fourth proportional to 149,915.35, 224,991.03 and 69,912.15 is: 104,923.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,915.35 : 224,991.03 = 69,912.15 : x
  2. Step 2: Convert to fraction form
    149,915.35/224,991.03 = 69,912.15/x
  3. Step 3: Cross multiply
    149,915.35x = 224,991.03 × 69,912.15
  4. Step 4: Simplify right side
    149,915.35x = 15,729,606,638.01
  5. Step 5: Solve for x
    x = 15,729,606,638.01/149,915.35
  6. Step 6: Final answer
    x = 104,923.26

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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.