Home / 100,901.26-139,244.70-55,579.44

Finding the Fourth Proportional to 100,901.26, 139,244.70 and 55,579.44

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Solution

The fourth proportional to 100,901.26, 139,244.70 and 55,579.44 is: 76,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,901.26 : 139,244.70 = 55,579.44 : x
  2. Step 2: Convert to fraction form
    100,901.26/139,244.70 = 55,579.44/x
  3. Step 3: Cross multiply
    100,901.26x = 139,244.70 × 55,579.44
  4. Step 4: Simplify right side
    100,901.26x = 7,739,142,448.97
  5. Step 5: Solve for x
    x = 7,739,142,448.97/100,901.26
  6. Step 6: Final answer
    x = 76,700.16

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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.