Home / 149,338.37-223,929.78-70,431.41

Finding the Fourth Proportional to 149,338.37, 223,929.78 and 70,431.41

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Solution

The fourth proportional to 149,338.37, 223,929.78 and 70,431.41 is: 105,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,338.37 : 223,929.78 = 70,431.41 : x
  2. Step 2: Convert to fraction form
    149,338.37/223,929.78 = 70,431.41/x
  3. Step 3: Cross multiply
    149,338.37x = 223,929.78 × 70,431.41
  4. Step 4: Simplify right side
    149,338.37x = 15,771,690,146.39
  5. Step 5: Solve for x
    x = 15,771,690,146.39/149,338.37
  6. Step 6: Final answer
    x = 105,610.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.