Home / 100,577.22-138,796.65-55,255.29

Finding the Fourth Proportional to 100,577.22, 138,796.65 and 55,255.29

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Solution

The fourth proportional to 100,577.22, 138,796.65 and 55,255.29 is: 76,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,577.22 : 138,796.65 = 55,255.29 : x
  2. Step 2: Convert to fraction form
    100,577.22/138,796.65 = 55,255.29/x
  3. Step 3: Cross multiply
    100,577.22x = 138,796.65 × 55,255.29
  4. Step 4: Simplify right side
    100,577.22x = 7,669,248,626.29
  5. Step 5: Solve for x
    x = 7,669,248,626.29/100,577.22
  6. Step 6: Final answer
    x = 76,252.35

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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.