Home / 100,577.16-138,796.54-55,258.07

Finding the Fourth Proportional to 100,577.16, 138,796.54 and 55,258.07

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Solution

The fourth proportional to 100,577.16, 138,796.54 and 55,258.07 is: 76,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,577.16 : 138,796.54 = 55,258.07 : x
  2. Step 2: Convert to fraction form
    100,577.16/138,796.54 = 55,258.07/x
  3. Step 3: Cross multiply
    100,577.16x = 138,796.54 × 55,258.07
  4. Step 4: Simplify right side
    100,577.16x = 7,669,628,090.95
  5. Step 5: Solve for x
    x = 7,669,628,090.95/100,577.16
  6. Step 6: Final answer
    x = 76,256.16

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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.