Home / 123,450.35-170,361.71-66,861.74

Finding the Fourth Proportional to 123,450.35, 170,361.71 and 66,861.74

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Solution

The fourth proportional to 123,450.35, 170,361.71 and 66,861.74 is: 92,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,450.35 : 170,361.71 = 66,861.74 : x
  2. Step 2: Convert to fraction form
    123,450.35/170,361.71 = 66,861.74/x
  3. Step 3: Cross multiply
    123,450.35x = 170,361.71 × 66,861.74
  4. Step 4: Simplify right side
    123,450.35x = 11,390,680,359.98
  5. Step 5: Solve for x
    x = 11,390,680,359.98/123,450.35
  6. Step 6: Final answer
    x = 92,269.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.