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Finding the Fourth Proportional to 144,558.72, 216,745.56 and 69,529.46

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Solution

The fourth proportional to 144,558.72, 216,745.56 and 69,529.46 is: 104,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,558.72 : 216,745.56 = 69,529.46 : x
  2. Step 2: Convert to fraction form
    144,558.72/216,745.56 = 69,529.46/x
  3. Step 3: Cross multiply
    144,558.72x = 216,745.56 × 69,529.46
  4. Step 4: Simplify right side
    144,558.72x = 15,070,200,660.47
  5. Step 5: Solve for x
    x = 15,070,200,660.47/144,558.72
  6. Step 6: Final answer
    x = 104,249.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.