Home / 199,655.34-275,516.47-109,015.12

Finding the Fourth Proportional to 199,655.34, 275,516.47 and 109,015.12

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Solution

The fourth proportional to 199,655.34, 275,516.47 and 109,015.12 is: 150,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,655.34 : 275,516.47 = 109,015.12 : x
  2. Step 2: Convert to fraction form
    199,655.34/275,516.47 = 109,015.12/x
  3. Step 3: Cross multiply
    199,655.34x = 275,516.47 × 109,015.12
  4. Step 4: Simplify right side
    199,655.34x = 30,035,461,039.03
  5. Step 5: Solve for x
    x = 30,035,461,039.03/199,655.34
  6. Step 6: Final answer
    x = 150,436.55

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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.