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Finding the Fourth Proportional to 149,999.40, 224,739.90 and 126,671.40

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Solution

The fourth proportional to 149,999.40, 224,739.90 and 126,671.40 is: 189,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.40 : 224,739.90 = 126,671.40 : x
  2. Step 2: Convert to fraction form
    149,999.40/224,739.90 = 126,671.40/x
  3. Step 3: Cross multiply
    149,999.40x = 224,739.90 × 126,671.40
  4. Step 4: Simplify right side
    149,999.40x = 28,468,117,768.86
  5. Step 5: Solve for x
    x = 28,468,117,768.86/149,999.40
  6. Step 6: Final answer
    x = 189,788.21

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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.