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Finding the Fourth Proportional to 123,075.56, 169,844.43 and 66,486.93

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Solution

The fourth proportional to 123,075.56, 169,844.43 and 66,486.93 is: 91,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,075.56 : 169,844.43 = 66,486.93 : x
  2. Step 2: Convert to fraction form
    123,075.56/169,844.43 = 66,486.93/x
  3. Step 3: Cross multiply
    123,075.56x = 169,844.43 × 66,486.93
  4. Step 4: Simplify right side
    123,075.56x = 11,292,434,728.30
  5. Step 5: Solve for x
    x = 11,292,434,728.30/123,075.56
  6. Step 6: Final answer
    x = 91,752.05

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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.