Home / 199,638.15-275,503.32-108,993.08

Finding the Fourth Proportional to 199,638.15, 275,503.32 and 108,993.08

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Solution

The fourth proportional to 199,638.15, 275,503.32 and 108,993.08 is: 150,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,638.15 : 275,503.32 = 108,993.08 : x
  2. Step 2: Convert to fraction form
    199,638.15/275,503.32 = 108,993.08/x
  3. Step 3: Cross multiply
    199,638.15x = 275,503.32 × 108,993.08
  4. Step 4: Simplify right side
    199,638.15x = 30,027,954,019.51
  5. Step 5: Solve for x
    x = 30,027,954,019.51/199,638.15
  6. Step 6: Final answer
    x = 150,411.90

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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.