Home / 137,882.20-190,272.56-84,256.96

Finding the Fourth Proportional to 137,882.20, 190,272.56 and 84,256.96

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Solution

The fourth proportional to 137,882.20, 190,272.56 and 84,256.96 is: 116,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,882.20 : 190,272.56 = 84,256.96 : x
  2. Step 2: Convert to fraction form
    137,882.20/190,272.56 = 84,256.96/x
  3. Step 3: Cross multiply
    137,882.20x = 190,272.56 × 84,256.96
  4. Step 4: Simplify right side
    137,882.20x = 16,031,787,477.02
  5. Step 5: Solve for x
    x = 16,031,787,477.02/137,882.20
  6. Step 6: Final answer
    x = 116,271.63

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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.