Home / 250,145.64-345,197.55-136,968.38

Finding the Fourth Proportional to 250,145.64, 345,197.55 and 136,968.38

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Solution

The fourth proportional to 250,145.64, 345,197.55 and 136,968.38 is: 189,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,145.64 : 345,197.55 = 136,968.38 : x
  2. Step 2: Convert to fraction form
    250,145.64/345,197.55 = 136,968.38/x
  3. Step 3: Cross multiply
    250,145.64x = 345,197.55 × 136,968.38
  4. Step 4: Simplify right side
    250,145.64x = 47,281,149,203.47
  5. Step 5: Solve for x
    x = 47,281,149,203.47/250,145.64
  6. Step 6: Final answer
    x = 189,014.48

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1.5x scale

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.