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Finding the Fourth Proportional to 149,999.90, 224,740.65 and 126,671.90

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Solution

The fourth proportional to 149,999.90, 224,740.65 and 126,671.90 is: 189,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.90 : 224,740.65 = 126,671.90 : x
  2. Step 2: Convert to fraction form
    149,999.90/224,740.65 = 126,671.90/x
  3. Step 3: Cross multiply
    149,999.90x = 224,740.65 × 126,671.90
  4. Step 4: Simplify right side
    149,999.90x = 28,468,325,142.74
  5. Step 5: Solve for x
    x = 28,468,325,142.74/149,999.90
  6. Step 6: Final answer
    x = 189,788.96

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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.