Home / 101,208.38-139,673.09-55,886.24

Finding the Fourth Proportional to 101,208.38, 139,673.09 and 55,886.24

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Solution

The fourth proportional to 101,208.38, 139,673.09 and 55,886.24 is: 77,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,208.38 : 139,673.09 = 55,886.24 : x
  2. Step 2: Convert to fraction form
    101,208.38/139,673.09 = 55,886.24/x
  3. Step 3: Cross multiply
    101,208.38x = 139,673.09 × 55,886.24
  4. Step 4: Simplify right side
    101,208.38x = 7,805,804,318.18
  5. Step 5: Solve for x
    x = 7,805,804,318.18/101,208.38
  6. Step 6: Final answer
    x = 77,126.07

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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.