Home / 111,226.72-153,520.34-63,507.75

Finding the Fourth Proportional to 111,226.72, 153,520.34 and 63,507.75

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Solution

The fourth proportional to 111,226.72, 153,520.34 and 63,507.75 is: 87,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,226.72 : 153,520.34 = 63,507.75 : x
  2. Step 2: Convert to fraction form
    111,226.72/153,520.34 = 63,507.75/x
  3. Step 3: Cross multiply
    111,226.72x = 153,520.34 × 63,507.75
  4. Step 4: Simplify right side
    111,226.72x = 9,749,730,658.01
  5. Step 5: Solve for x
    x = 9,749,730,658.01/111,226.72
  6. Step 6: Final answer
    x = 87,656.37

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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.