Home / 137,871.12-190,257.12-84,245.88

Finding the Fourth Proportional to 137,871.12, 190,257.12 and 84,245.88

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Solution

The fourth proportional to 137,871.12, 190,257.12 and 84,245.88 is: 116,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,871.12 : 190,257.12 = 84,245.88 : x
  2. Step 2: Convert to fraction form
    137,871.12/190,257.12 = 84,245.88/x
  3. Step 3: Cross multiply
    137,871.12x = 190,257.12 × 84,245.88
  4. Step 4: Simplify right side
    137,871.12x = 16,028,378,500.67
  5. Step 5: Solve for x
    x = 16,028,378,500.67/137,871.12
  6. Step 6: Final answer
    x = 116,256.24

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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.