Home / 120,317.92-166,036.72-66,601.80

Finding the Fourth Proportional to 120,317.92, 166,036.72 and 66,601.80

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Solution

The fourth proportional to 120,317.92, 166,036.72 and 66,601.80 is: 91,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,317.92 : 166,036.72 = 66,601.80 : x
  2. Step 2: Convert to fraction form
    120,317.92/166,036.72 = 66,601.80/x
  3. Step 3: Cross multiply
    120,317.92x = 166,036.72 × 66,601.80
  4. Step 4: Simplify right side
    120,317.92x = 11,058,344,418.10
  5. Step 5: Solve for x
    x = 11,058,344,418.10/120,317.92
  6. Step 6: Final answer
    x = 91,909.37

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1.5x scale

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.