Home / 101,375.26-139,885.64-56,047.12

Finding the Fourth Proportional to 101,375.26, 139,885.64 and 56,047.12

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Solution

The fourth proportional to 101,375.26, 139,885.64 and 56,047.12 is: 77,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,375.26 : 139,885.64 = 56,047.12 : x
  2. Step 2: Convert to fraction form
    101,375.26/139,885.64 = 56,047.12/x
  3. Step 3: Cross multiply
    101,375.26x = 139,885.64 × 56,047.12
  4. Step 4: Simplify right side
    101,375.26x = 7,840,187,251.36
  5. Step 5: Solve for x
    x = 7,840,187,251.36/101,375.26
  6. Step 6: Final answer
    x = 77,338.27

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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.