Home / 199,609.68-275,507.67-131,638.92

Finding the Fourth Proportional to 199,609.68, 275,507.67 and 131,638.92

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Solution

The fourth proportional to 199,609.68, 275,507.67 and 131,638.92 is: 181,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,609.68 : 275,507.67 = 131,638.92 : x
  2. Step 2: Convert to fraction form
    199,609.68/275,507.67 = 131,638.92/x
  3. Step 3: Cross multiply
    199,609.68x = 275,507.67 × 131,638.92
  4. Step 4: Simplify right side
    199,609.68x = 36,267,532,130.52
  5. Step 5: Solve for x
    x = 36,267,532,130.52/199,609.68
  6. Step 6: Final answer
    x = 181,692.25

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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.