Home / 289,103.37-433,636.58-89,407.03

Finding the Fourth Proportional to 289,103.37, 433,636.58 and 89,407.03

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Solution

The fourth proportional to 289,103.37, 433,636.58 and 89,407.03 is: 134,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,103.37 : 433,636.58 = 89,407.03 : x
  2. Step 2: Convert to fraction form
    289,103.37/433,636.58 = 89,407.03/x
  3. Step 3: Cross multiply
    289,103.37x = 433,636.58 × 89,407.03
  4. Step 4: Simplify right side
    289,103.37x = 38,770,158,418.19
  5. Step 5: Solve for x
    x = 38,770,158,418.19/289,103.37
  6. Step 6: Final answer
    x = 134,104.83

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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.