Home / 146,896.30-220,344.45-139,638.70

Finding the Fourth Proportional to 146,896.30, 220,344.45 and 139,638.70

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Solution

The fourth proportional to 146,896.30, 220,344.45 and 139,638.70 is: 209,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,896.30 : 220,344.45 = 139,638.70 : x
  2. Step 2: Convert to fraction form
    146,896.30/220,344.45 = 139,638.70/x
  3. Step 3: Cross multiply
    146,896.30x = 220,344.45 × 139,638.70
  4. Step 4: Simplify right side
    146,896.30x = 30,768,612,550.22
  5. Step 5: Solve for x
    x = 30,768,612,550.22/146,896.30
  6. Step 6: Final answer
    x = 209,458.05

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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.