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Finding the Fourth Proportional to 123,010.40, 169,770.48 and 69,305.78

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Solution

The fourth proportional to 123,010.40, 169,770.48 and 69,305.78 is: 95,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,010.40 : 169,770.48 = 69,305.78 : x
  2. Step 2: Convert to fraction form
    123,010.40/169,770.48 = 69,305.78/x
  3. Step 3: Cross multiply
    123,010.40x = 169,770.48 × 69,305.78
  4. Step 4: Simplify right side
    123,010.40x = 11,766,075,537.37
  5. Step 5: Solve for x
    x = 11,766,075,537.37/123,010.40
  6. Step 6: Final answer
    x = 95,651.06

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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.