Home / 219,143.08-302,435.94-123,653.80

Finding the Fourth Proportional to 219,143.08, 302,435.94 and 123,653.80

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Solution

The fourth proportional to 219,143.08, 302,435.94 and 123,653.80 is: 170,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,143.08 : 302,435.94 = 123,653.80 : x
  2. Step 2: Convert to fraction form
    219,143.08/302,435.94 = 123,653.80/x
  3. Step 3: Cross multiply
    219,143.08x = 302,435.94 × 123,653.80
  4. Step 4: Simplify right side
    219,143.08x = 37,397,353,237.57
  5. Step 5: Solve for x
    x = 37,397,353,237.57/219,143.08
  6. Step 6: Final answer
    x = 170,652.68

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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.