Home / 100,411.05-150,616.77-30,290.43

Finding the Fourth Proportional to 100,411.05, 150,616.77 and 30,290.43

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Solution

The fourth proportional to 100,411.05, 150,616.77 and 30,290.43 is: 45,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,411.05 : 150,616.77 = 30,290.43 : x
  2. Step 2: Convert to fraction form
    100,411.05/150,616.77 = 30,290.43/x
  3. Step 3: Cross multiply
    100,411.05x = 150,616.77 × 30,290.43
  4. Step 4: Simplify right side
    100,411.05x = 4,562,246,728.51
  5. Step 5: Solve for x
    x = 4,562,246,728.51/100,411.05
  6. Step 6: Final answer
    x = 45,435.70

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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.