Home / 219,708.83-303,230.51-139,143.85

Finding the Fourth Proportional to 219,708.83, 303,230.51 and 139,143.85

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Solution

The fourth proportional to 219,708.83, 303,230.51 and 139,143.85 is: 192,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,708.83 : 303,230.51 = 139,143.85 : x
  2. Step 2: Convert to fraction form
    219,708.83/303,230.51 = 139,143.85/x
  3. Step 3: Cross multiply
    219,708.83x = 303,230.51 × 139,143.85
  4. Step 4: Simplify right side
    219,708.83x = 42,192,660,911.04
  5. Step 5: Solve for x
    x = 42,192,660,911.04/219,708.83
  6. Step 6: Final answer
    x = 192,038.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.