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Finding the Fourth Proportional to 123,705.33, 170,695.21 and 69,254.67

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Solution

The fourth proportional to 123,705.33, 170,695.21 and 69,254.67 is: 95,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,705.33 : 170,695.21 = 69,254.67 : x
  2. Step 2: Convert to fraction form
    123,705.33/170,695.21 = 69,254.67/x
  3. Step 3: Cross multiply
    123,705.33x = 170,695.21 × 69,254.67
  4. Step 4: Simplify right side
    123,705.33x = 11,821,440,361.09
  5. Step 5: Solve for x
    x = 11,821,440,361.09/123,705.33
  6. Step 6: Final answer
    x = 95,561.29

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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.