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Finding the Fourth Proportional to 101,174.02, 139,620.12 and 55,852

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Solution

The fourth proportional to 101,174.02, 139,620.12 and 55,852 is: 77,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,174.02 : 139,620.12 = 55,852 : x
  2. Step 2: Convert to fraction form
    101,174.02/139,620.12 = 55,852/x
  3. Step 3: Cross multiply
    101,174.02x = 139,620.12 × 55,852
  4. Step 4: Simplify right side
    101,174.02x = 7,798,062,942.24
  5. Step 5: Solve for x
    x = 7,798,062,942.24/101,174.02
  6. Step 6: Final answer
    x = 77,075.74

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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.