Home / 120,317.43-166,036.03-66,601.29

Finding the Fourth Proportional to 120,317.43, 166,036.03 and 66,601.29

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Solution

The fourth proportional to 120,317.43, 166,036.03 and 66,601.29 is: 91,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,317.43 : 166,036.03 = 66,601.29 : x
  2. Step 2: Convert to fraction form
    120,317.43/166,036.03 = 66,601.29/x
  3. Step 3: Cross multiply
    120,317.43x = 166,036.03 × 66,601.29
  4. Step 4: Simplify right side
    120,317.43x = 11,058,213,784.48
  5. Step 5: Solve for x
    x = 11,058,213,784.48/120,317.43
  6. Step 6: Final answer
    x = 91,908.66

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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.