Home / 100,170.64-150,199.84-68,616.36

Finding the Fourth Proportional to 100,170.64, 150,199.84 and 68,616.36

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Solution

The fourth proportional to 100,170.64, 150,199.84 and 68,616.36 is: 102,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,170.64 : 150,199.84 = 68,616.36 : x
  2. Step 2: Convert to fraction form
    100,170.64/150,199.84 = 68,616.36/x
  3. Step 3: Cross multiply
    100,170.64x = 150,199.84 × 68,616.36
  4. Step 4: Simplify right side
    100,170.64x = 10,306,166,293.38
  5. Step 5: Solve for x
    x = 10,306,166,293.38/100,170.64
  6. Step 6: Final answer
    x = 102,886.10

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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.