Home / 201,636.12-302,499.24-61,405.68

Finding the Fourth Proportional to 201,636.12, 302,499.24 and 61,405.68

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Solution

The fourth proportional to 201,636.12, 302,499.24 and 61,405.68 is: 92,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.12 : 302,499.24 = 61,405.68 : x
  2. Step 2: Convert to fraction form
    201,636.12/302,499.24 = 61,405.68/x
  3. Step 3: Cross multiply
    201,636.12x = 302,499.24 × 61,405.68
  4. Step 4: Simplify right side
    201,636.12x = 18,575,171,531.68
  5. Step 5: Solve for x
    x = 18,575,171,531.68/201,636.12
  6. Step 6: Final answer
    x = 92,122.24

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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.