Home / 111,211.08-153,469.56-63,463.20

Finding the Fourth Proportional to 111,211.08, 153,469.56 and 63,463.20

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Solution

The fourth proportional to 111,211.08, 153,469.56 and 63,463.20 is: 87,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211.08 : 153,469.56 = 63,463.20 : x
  2. Step 2: Convert to fraction form
    111,211.08/153,469.56 = 63,463.20/x
  3. Step 3: Cross multiply
    111,211.08x = 153,469.56 × 63,463.20
  4. Step 4: Simplify right side
    111,211.08x = 9,739,669,380.19
  5. Step 5: Solve for x
    x = 9,739,669,380.19/111,211.08
  6. Step 6: Final answer
    x = 87,578.23

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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.