Home / 146,211.10-219,025.05-76,129.90

Finding the Fourth Proportional to 146,211.10, 219,025.05 and 76,129.90

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Solution

The fourth proportional to 146,211.10, 219,025.05 and 76,129.90 is: 114,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,211.10 : 219,025.05 = 76,129.90 : x
  2. Step 2: Convert to fraction form
    146,211.10/219,025.05 = 76,129.90/x
  3. Step 3: Cross multiply
    146,211.10x = 219,025.05 × 76,129.90
  4. Step 4: Simplify right side
    146,211.10x = 16,674,355,154.00
  5. Step 5: Solve for x
    x = 16,674,355,154.00/146,211.10
  6. Step 6: Final answer
    x = 114,043.02

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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.