Home / 134,378.38-185,243.37-85,975.09

Finding the Fourth Proportional to 134,378.38, 185,243.37 and 85,975.09

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Solution

The fourth proportional to 134,378.38, 185,243.37 and 85,975.09 is: 118,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,378.38 : 185,243.37 = 85,975.09 : x
  2. Step 2: Convert to fraction form
    134,378.38/185,243.37 = 85,975.09/x
  3. Step 3: Cross multiply
    134,378.38x = 185,243.37 × 85,975.09
  4. Step 4: Simplify right side
    134,378.38x = 15,926,315,407.65
  5. Step 5: Solve for x
    x = 15,926,315,407.65/134,378.38
  6. Step 6: Final answer
    x = 118,518.44

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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.