Home / 101,179.08-139,623.46-55,856.09

Finding the Fourth Proportional to 101,179.08, 139,623.46 and 55,856.09

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Solution

The fourth proportional to 101,179.08, 139,623.46 and 55,856.09 is: 77,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,179.08 : 139,623.46 = 55,856.09 : x
  2. Step 2: Convert to fraction form
    101,179.08/139,623.46 = 55,856.09/x
  3. Step 3: Cross multiply
    101,179.08x = 139,623.46 × 55,856.09
  4. Step 4: Simplify right side
    101,179.08x = 7,798,819,919.57
  5. Step 5: Solve for x
    x = 7,798,819,919.57/101,179.08
  6. Step 6: Final answer
    x = 77,079.37

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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.