Home / 154,775.21-213,635.14-101,068.56

Finding the Fourth Proportional to 154,775.21, 213,635.14 and 101,068.56

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Solution

The fourth proportional to 154,775.21, 213,635.14 and 101,068.56 is: 139,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,775.21 : 213,635.14 = 101,068.56 : x
  2. Step 2: Convert to fraction form
    154,775.21/213,635.14 = 101,068.56/x
  3. Step 3: Cross multiply
    154,775.21x = 213,635.14 × 101,068.56
  4. Step 4: Simplify right side
    154,775.21x = 21,591,795,712.53
  5. Step 5: Solve for x
    x = 21,591,795,712.53/154,775.21
  6. Step 6: Final answer
    x = 139,504.23

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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.