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Finding the Fourth Proportional to 123,020.67, 183,856.98 and 89,810.67

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Solution

The fourth proportional to 123,020.67, 183,856.98 and 89,810.67 is: 134,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,020.67 : 183,856.98 = 89,810.67 : x
  2. Step 2: Convert to fraction form
    123,020.67/183,856.98 = 89,810.67/x
  3. Step 3: Cross multiply
    123,020.67x = 183,856.98 × 89,810.67
  4. Step 4: Simplify right side
    123,020.67x = 16,512,318,557.98
  5. Step 5: Solve for x
    x = 16,512,318,557.98/123,020.67
  6. Step 6: Final answer
    x = 134,223.94

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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.