Home / 124,610.45-172,003.44-99,163.49

Finding the Fourth Proportional to 124,610.45, 172,003.44 and 99,163.49

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Solution

The fourth proportional to 124,610.45, 172,003.44 and 99,163.49 is: 136,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,610.45 : 172,003.44 = 99,163.49 : x
  2. Step 2: Convert to fraction form
    124,610.45/172,003.44 = 99,163.49/x
  3. Step 3: Cross multiply
    124,610.45x = 172,003.44 × 99,163.49
  4. Step 4: Simplify right side
    124,610.45x = 17,056,461,402.41
  5. Step 5: Solve for x
    x = 17,056,461,402.41/124,610.45
  6. Step 6: Final answer
    x = 136,878.26

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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.