Home / 135,683.05-187,026.32-106,955.89

Finding the Fourth Proportional to 135,683.05, 187,026.32 and 106,955.89

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Solution

The fourth proportional to 135,683.05, 187,026.32 and 106,955.89 is: 147,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,683.05 : 187,026.32 = 106,955.89 : x
  2. Step 2: Convert to fraction form
    135,683.05/187,026.32 = 106,955.89/x
  3. Step 3: Cross multiply
    135,683.05x = 187,026.32 × 106,955.89
  4. Step 4: Simplify right side
    135,683.05x = 20,003,566,308.85
  5. Step 5: Solve for x
    x = 20,003,566,308.85/135,683.05
  6. Step 6: Final answer
    x = 147,428.64

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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.