Home / 100,855.51-151,299.68-29,785.33

Finding the Fourth Proportional to 100,855.51, 151,299.68 and 29,785.33

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Solution

The fourth proportional to 100,855.51, 151,299.68 and 29,785.33 is: 44,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,855.51 : 151,299.68 = 29,785.33 : x
  2. Step 2: Convert to fraction form
    100,855.51/151,299.68 = 29,785.33/x
  3. Step 3: Cross multiply
    100,855.51x = 151,299.68 × 29,785.33
  4. Step 4: Simplify right side
    100,855.51x = 4,506,510,897.69
  5. Step 5: Solve for x
    x = 4,506,510,897.69/100,855.51
  6. Step 6: Final answer
    x = 44,682.84

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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.