Home / 120,541.47-166,351.27-66,823.28

Finding the Fourth Proportional to 120,541.47, 166,351.27 and 66,823.28

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Solution

The fourth proportional to 120,541.47, 166,351.27 and 66,823.28 is: 92,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,541.47 : 166,351.27 = 66,823.28 : x
  2. Step 2: Convert to fraction form
    120,541.47/166,351.27 = 66,823.28/x
  3. Step 3: Cross multiply
    120,541.47x = 166,351.27 × 66,823.28
  4. Step 4: Simplify right side
    120,541.47x = 11,116,137,243.86
  5. Step 5: Solve for x
    x = 11,116,137,243.86/120,541.47
  6. Step 6: Final answer
    x = 92,218.37

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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.