Home / 100,268.90-138,369.24-59,460.50

Finding the Fourth Proportional to 100,268.90, 138,369.24 and 59,460.50

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Solution

The fourth proportional to 100,268.90, 138,369.24 and 59,460.50 is: 82,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,268.90 : 138,369.24 = 59,460.50 : x
  2. Step 2: Convert to fraction form
    100,268.90/138,369.24 = 59,460.50/x
  3. Step 3: Cross multiply
    100,268.90x = 138,369.24 × 59,460.50
  4. Step 4: Simplify right side
    100,268.90x = 8,227,504,195.02
  5. Step 5: Solve for x
    x = 8,227,504,195.02/100,268.90
  6. Step 6: Final answer
    x = 82,054.40

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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.