Home / 134,661.92-185,811.72-80,934.08

Finding the Fourth Proportional to 134,661.92, 185,811.72 and 80,934.08

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Solution

The fourth proportional to 134,661.92, 185,811.72 and 80,934.08 is: 111,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.92 : 185,811.72 = 80,934.08 : x
  2. Step 2: Convert to fraction form
    134,661.92/185,811.72 = 80,934.08/x
  3. Step 3: Cross multiply
    134,661.92x = 185,811.72 × 80,934.08
  4. Step 4: Simplify right side
    134,661.92x = 15,038,500,611.42
  5. Step 5: Solve for x
    x = 15,038,500,611.42/134,661.92
  6. Step 6: Final answer
    x = 111,675.97

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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.