Home / 145,006.20-217,099.70-140,910.20

Finding the Fourth Proportional to 145,006.20, 217,099.70 and 140,910.20

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Solution

The fourth proportional to 145,006.20, 217,099.70 and 140,910.20 is: 210,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006.20 : 217,099.70 = 140,910.20 : x
  2. Step 2: Convert to fraction form
    145,006.20/217,099.70 = 140,910.20/x
  3. Step 3: Cross multiply
    145,006.20x = 217,099.70 × 140,910.20
  4. Step 4: Simplify right side
    145,006.20x = 30,591,562,146.94
  5. Step 5: Solve for x
    x = 30,591,562,146.94/145,006.20
  6. Step 6: Final answer
    x = 210,967.27

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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.