Home / 198,378.72-273,641.76-117,751.68

Finding the Fourth Proportional to 198,378.72, 273,641.76 and 117,751.68

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Solution

The fourth proportional to 198,378.72, 273,641.76 and 117,751.68 is: 162,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,378.72 : 273,641.76 = 117,751.68 : x
  2. Step 2: Convert to fraction form
    198,378.72/273,641.76 = 117,751.68/x
  3. Step 3: Cross multiply
    198,378.72x = 273,641.76 × 117,751.68
  4. Step 4: Simplify right side
    198,378.72x = 32,221,776,958.16
  5. Step 5: Solve for x
    x = 32,221,776,958.16/198,378.72
  6. Step 6: Final answer
    x = 162,425.57

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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.