Home / 123,767,172.28-170,804,012.16-68,763,028.78

Finding the Fourth Proportional to 123,767,172.28, 170,804,012.16 and 68,763,028.78

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Solution

The fourth proportional to 123,767,172.28, 170,804,012.16 and 68,763,028.78 is: 94,895,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,767,172.28 : 170,804,012.16 = 68,763,028.78 : x
  2. Step 2: Convert to fraction form
    123,767,172.28/170,804,012.16 = 68,763,028.78/x
  3. Step 3: Cross multiply
    123,767,172.28x = 170,804,012.16 × 68,763,028.78
  4. Step 4: Simplify right side
    123,767,172.28x = 11,745,001,203,982,468
  5. Step 5: Solve for x
    x = 11,745,001,203,982,468/123,767,172.28
  6. Step 6: Final answer
    x = 94,895,932.32

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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.