Home / 101,448.05-139,912.00-61,153.38

Finding the Fourth Proportional to 101,448.05, 139,912.00 and 61,153.38

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Solution

The fourth proportional to 101,448.05, 139,912.00 and 61,153.38 is: 84,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,448.05 : 139,912.00 = 61,153.38 : x
  2. Step 2: Convert to fraction form
    101,448.05/139,912.00 = 61,153.38/x
  3. Step 3: Cross multiply
    101,448.05x = 139,912.00 × 61,153.38
  4. Step 4: Simplify right side
    101,448.05x = 8,556,091,549.68
  5. Step 5: Solve for x
    x = 8,556,091,549.68/101,448.05
  6. Step 6: Final answer
    x = 84,339.64

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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.