Home / 108,090.36-149,163.42-62,768.28

Finding the Fourth Proportional to 108,090.36, 149,163.42 and 62,768.28

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Solution

The fourth proportional to 108,090.36, 149,163.42 and 62,768.28 is: 86,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,090.36 : 149,163.42 = 62,768.28 : x
  2. Step 2: Convert to fraction form
    108,090.36/149,163.42 = 62,768.28/x
  3. Step 3: Cross multiply
    108,090.36x = 149,163.42 × 62,768.28
  4. Step 4: Simplify right side
    108,090.36x = 9,362,731,312.32
  5. Step 5: Solve for x
    x = 9,362,731,312.32/108,090.36
  6. Step 6: Final answer
    x = 86,619.48

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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.