Home / 121,002.26-166,987.16-66,556.72

Finding the Fourth Proportional to 121,002.26, 166,987.16 and 66,556.72

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Solution

The fourth proportional to 121,002.26, 166,987.16 and 66,556.72 is: 91,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,002.26 : 166,987.16 = 66,556.72 : x
  2. Step 2: Convert to fraction form
    121,002.26/166,987.16 = 66,556.72/x
  3. Step 3: Cross multiply
    121,002.26x = 166,987.16 × 66,556.72
  4. Step 4: Simplify right side
    121,002.26x = 11,114,118,090.35
  5. Step 5: Solve for x
    x = 11,114,118,090.35/121,002.26
  6. Step 6: Final answer
    x = 91,850.50

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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.