Home / 101,028.08-139,361.64-63,236.72

Finding the Fourth Proportional to 101,028.08, 139,361.64 and 63,236.72

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Solution

The fourth proportional to 101,028.08, 139,361.64 and 63,236.72 is: 87,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,028.08 : 139,361.64 = 63,236.72 : x
  2. Step 2: Convert to fraction form
    101,028.08/139,361.64 = 63,236.72/x
  3. Step 3: Cross multiply
    101,028.08x = 139,361.64 × 63,236.72
  4. Step 4: Simplify right side
    101,028.08x = 8,812,773,007.42
  5. Step 5: Solve for x
    x = 8,812,773,007.42/101,028.08
  6. Step 6: Final answer
    x = 87,230.93

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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.