Home / 111,217.08-153,477.84-63,469.20

Finding the Fourth Proportional to 111,217.08, 153,477.84 and 63,469.20

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Solution

The fourth proportional to 111,217.08, 153,477.84 and 63,469.20 is: 87,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,217.08 : 153,477.84 = 63,469.20 : x
  2. Step 2: Convert to fraction form
    111,217.08/153,477.84 = 63,469.20/x
  3. Step 3: Cross multiply
    111,217.08x = 153,477.84 × 63,469.20
  4. Step 4: Simplify right side
    111,217.08x = 9,741,115,722.53
  5. Step 5: Solve for x
    x = 9,741,115,722.53/111,217.08
  6. Step 6: Final answer
    x = 87,586.51

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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.