Home / 198,421.68-273,744.75-112,360.89

Finding the Fourth Proportional to 198,421.68, 273,744.75 and 112,360.89

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Solution

The fourth proportional to 198,421.68, 273,744.75 and 112,360.89 is: 155,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,421.68 : 273,744.75 = 112,360.89 : x
  2. Step 2: Convert to fraction form
    198,421.68/273,744.75 = 112,360.89/x
  3. Step 3: Cross multiply
    198,421.68x = 273,744.75 × 112,360.89
  4. Step 4: Simplify right side
    198,421.68x = 30,758,203,742.83
  5. Step 5: Solve for x
    x = 30,758,203,742.83/198,421.68
  6. Step 6: Final answer
    x = 155,014.33

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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.