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Finding the Fourth Proportional to 123,021.67, 183,858.47 and 89,811.67

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Solution

The fourth proportional to 123,021.67, 183,858.47 and 89,811.67 is: 134,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,021.67 : 183,858.47 = 89,811.67 : x
  2. Step 2: Convert to fraction form
    123,021.67/183,858.47 = 89,811.67/x
  3. Step 3: Cross multiply
    123,021.67x = 183,858.47 × 89,811.67
  4. Step 4: Simplify right side
    123,021.67x = 16,512,636,234.34
  5. Step 5: Solve for x
    x = 16,512,636,234.34/123,021.67
  6. Step 6: Final answer
    x = 134,225.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.