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Finding the Fourth Proportional to 100,146.51, 150,219.36 and 40,982.15

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Solution

The fourth proportional to 100,146.51, 150,219.36 and 40,982.15 is: 61,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,146.51 : 150,219.36 = 40,982.15 : x
  2. Step 2: Convert to fraction form
    100,146.51/150,219.36 = 40,982.15/x
  3. Step 3: Cross multiply
    100,146.51x = 150,219.36 × 40,982.15
  4. Step 4: Simplify right side
    100,146.51x = 6,156,312,719.97
  5. Step 5: Solve for x
    x = 6,156,312,719.97/100,146.51
  6. Step 6: Final answer
    x = 61,473.06

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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.