Home / 199,931.55-275,912.91-109,293.57

Finding the Fourth Proportional to 199,931.55, 275,912.91 and 109,293.57

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Solution

The fourth proportional to 199,931.55, 275,912.91 and 109,293.57 is: 150,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,931.55 : 275,912.91 = 109,293.57 : x
  2. Step 2: Convert to fraction form
    199,931.55/275,912.91 = 109,293.57/x
  3. Step 3: Cross multiply
    199,931.55x = 275,912.91 × 109,293.57
  4. Step 4: Simplify right side
    199,931.55x = 30,155,506,942.99
  5. Step 5: Solve for x
    x = 30,155,506,942.99/199,931.55
  6. Step 6: Final answer
    x = 150,829.16

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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.