Home / 137,886.82-190,254.27-80,500.08

Finding the Fourth Proportional to 137,886.82, 190,254.27 and 80,500.08

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Solution

The fourth proportional to 137,886.82, 190,254.27 and 80,500.08 is: 111,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,886.82 : 190,254.27 = 80,500.08 : x
  2. Step 2: Convert to fraction form
    137,886.82/190,254.27 = 80,500.08/x
  3. Step 3: Cross multiply
    137,886.82x = 190,254.27 × 80,500.08
  4. Step 4: Simplify right side
    137,886.82x = 15,315,483,955.34
  5. Step 5: Solve for x
    x = 15,315,483,955.34/137,886.82
  6. Step 6: Final answer
    x = 111,072.86

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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.