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Finding the Fourth Proportional to 105,000.60, 157,500.90 and 100,626.60

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Solution

The fourth proportional to 105,000.60, 157,500.90 and 100,626.60 is: 150,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,000.60 : 157,500.90 = 100,626.60 : x
  2. Step 2: Convert to fraction form
    105,000.60/157,500.90 = 100,626.60/x
  3. Step 3: Cross multiply
    105,000.60x = 157,500.90 × 100,626.60
  4. Step 4: Simplify right side
    105,000.60x = 15,848,780,063.94
  5. Step 5: Solve for x
    x = 15,848,780,063.94/105,000.60
  6. Step 6: Final answer
    x = 150,939.90

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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.