Home / 101,778.21-152,626.29-30,678.84

Finding the Fourth Proportional to 101,778.21, 152,626.29 and 30,678.84

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Solution

The fourth proportional to 101,778.21, 152,626.29 and 30,678.84 is: 46,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,778.21 : 152,626.29 = 30,678.84 : x
  2. Step 2: Convert to fraction form
    101,778.21/152,626.29 = 30,678.84/x
  3. Step 3: Cross multiply
    101,778.21x = 152,626.29 × 30,678.84
  4. Step 4: Simplify right side
    101,778.21x = 4,682,397,530.70
  5. Step 5: Solve for x
    x = 4,682,397,530.70/101,778.21
  6. Step 6: Final answer
    x = 46,005.89

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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.