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Finding the Fourth Proportional to 146,129.70, 219,216.45 and 61,889.70

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Solution

The fourth proportional to 146,129.70, 219,216.45 and 61,889.70 is: 92,843.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,129.70 : 219,216.45 = 61,889.70 : x
  2. Step 2: Convert to fraction form
    146,129.70/219,216.45 = 61,889.70/x
  3. Step 3: Cross multiply
    146,129.70x = 219,216.45 × 61,889.70
  4. Step 4: Simplify right side
    146,129.70x = 13,567,240,325.57
  5. Step 5: Solve for x
    x = 13,567,240,325.57/146,129.70
  6. Step 6: Final answer
    x = 92,843.83

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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.