Home / 137,795.76-190,178.96-84,112.02

Finding the Fourth Proportional to 137,795.76, 190,178.96 and 84,112.02

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Solution

The fourth proportional to 137,795.76, 190,178.96 and 84,112.02 is: 116,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,795.76 : 190,178.96 = 84,112.02 : x
  2. Step 2: Convert to fraction form
    137,795.76/190,178.96 = 84,112.02/x
  3. Step 3: Cross multiply
    137,795.76x = 190,178.96 × 84,112.02
  4. Step 4: Simplify right side
    137,795.76x = 15,996,336,487.10
  5. Step 5: Solve for x
    x = 15,996,336,487.10/137,795.76
  6. Step 6: Final answer
    x = 116,087.29

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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.