Home / 190,725.54-286,276.64-143,175.30

Finding the Fourth Proportional to 190,725.54, 286,276.64 and 143,175.30

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Solution

The fourth proportional to 190,725.54, 286,276.64 and 143,175.30 is: 214,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,725.54 : 286,276.64 = 143,175.30 : x
  2. Step 2: Convert to fraction form
    190,725.54/286,276.64 = 143,175.30/x
  3. Step 3: Cross multiply
    190,725.54x = 286,276.64 × 143,175.30
  4. Step 4: Simplify right side
    190,725.54x = 40,987,743,099.12
  5. Step 5: Solve for x
    x = 40,987,743,099.12/190,725.54
  6. Step 6: Final answer
    x = 214,904.32

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1.5x scale

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.