Home / 109,072.40-150,546.64-66,666.48

Finding the Fourth Proportional to 109,072.40, 150,546.64 and 66,666.48

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Solution

The fourth proportional to 109,072.40, 150,546.64 and 66,666.48 is: 92,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,072.40 : 150,546.64 = 66,666.48 : x
  2. Step 2: Convert to fraction form
    109,072.40/150,546.64 = 66,666.48/x
  3. Step 3: Cross multiply
    109,072.40x = 150,546.64 × 66,666.48
  4. Step 4: Simplify right side
    109,072.40x = 10,036,414,564.63
  5. Step 5: Solve for x
    x = 10,036,414,564.63/109,072.40
  6. Step 6: Final answer
    x = 92,016.08

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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.