Home / 196,817.68-295,168.74-90,141.40

Finding the Fourth Proportional to 196,817.68, 295,168.74 and 90,141.40

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Solution

The fourth proportional to 196,817.68, 295,168.74 and 90,141.40 is: 135,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,817.68 : 295,168.74 = 90,141.40 : x
  2. Step 2: Convert to fraction form
    196,817.68/295,168.74 = 90,141.40/x
  3. Step 3: Cross multiply
    196,817.68x = 295,168.74 × 90,141.40
  4. Step 4: Simplify right side
    196,817.68x = 26,606,923,459.84
  5. Step 5: Solve for x
    x = 26,606,923,459.84/196,817.68
  6. Step 6: Final answer
    x = 135,185.64

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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.