Home / 120,533.80-166,335.72-66,085.33

Finding the Fourth Proportional to 120,533.80, 166,335.72 and 66,085.33

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Solution

The fourth proportional to 120,533.80, 166,335.72 and 66,085.33 is: 91,197.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,533.80 : 166,335.72 = 66,085.33 : x
  2. Step 2: Convert to fraction form
    120,533.80/166,335.72 = 66,085.33/x
  3. Step 3: Cross multiply
    120,533.80x = 166,335.72 × 66,085.33
  4. Step 4: Simplify right side
    120,533.80x = 10,992,350,946.99
  5. Step 5: Solve for x
    x = 10,992,350,946.99/120,533.80
  6. Step 6: Final answer
    x = 91,197.25

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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.