Home / 137,954.09-190,370.50-80,598.71

Finding the Fourth Proportional to 137,954.09, 190,370.50 and 80,598.71

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Solution

The fourth proportional to 137,954.09, 190,370.50 and 80,598.71 is: 111,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,954.09 : 190,370.50 = 80,598.71 : x
  2. Step 2: Convert to fraction form
    137,954.09/190,370.50 = 80,598.71/x
  3. Step 3: Cross multiply
    137,954.09x = 190,370.50 × 80,598.71
  4. Step 4: Simplify right side
    137,954.09x = 15,343,617,449.85
  5. Step 5: Solve for x
    x = 15,343,617,449.85/137,954.09
  6. Step 6: Final answer
    x = 111,222.64

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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.