Home / 135,139.88-202,405.26-65,071.64

Finding the Fourth Proportional to 135,139.88, 202,405.26 and 65,071.64

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Solution

The fourth proportional to 135,139.88, 202,405.26 and 65,071.64 is: 97,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,139.88 : 202,405.26 = 65,071.64 : x
  2. Step 2: Convert to fraction form
    135,139.88/202,405.26 = 65,071.64/x
  3. Step 3: Cross multiply
    135,139.88x = 202,405.26 × 65,071.64
  4. Step 4: Simplify right side
    135,139.88x = 13,170,842,212.83
  5. Step 5: Solve for x
    x = 13,170,842,212.83/135,139.88
  6. Step 6: Final answer
    x = 97,460.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.