Home / 101,321.22-139,840.66-58,904.36

Finding the Fourth Proportional to 101,321.22, 139,840.66 and 58,904.36

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Solution

The fourth proportional to 101,321.22, 139,840.66 and 58,904.36 is: 81,298.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,321.22 : 139,840.66 = 58,904.36 : x
  2. Step 2: Convert to fraction form
    101,321.22/139,840.66 = 58,904.36/x
  3. Step 3: Cross multiply
    101,321.22x = 139,840.66 × 58,904.36
  4. Step 4: Simplify right side
    101,321.22x = 8,237,224,579.28
  5. Step 5: Solve for x
    x = 8,237,224,579.28/101,321.22
  6. Step 6: Final answer
    x = 81,298.12

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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.