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Finding the Fourth Proportional to 149,907.30, 224,749.73 and 90,728.90

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Solution

The fourth proportional to 149,907.30, 224,749.73 and 90,728.90 is: 136,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,907.30 : 224,749.73 = 90,728.90 : x
  2. Step 2: Convert to fraction form
    149,907.30/224,749.73 = 90,728.90/x
  3. Step 3: Cross multiply
    149,907.30x = 224,749.73 × 90,728.90
  4. Step 4: Simplify right side
    149,907.30x = 20,391,295,778.20
  5. Step 5: Solve for x
    x = 20,391,295,778.20/149,907.30
  6. Step 6: Final answer
    x = 136,026.04

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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.