Home / 120,304.48-166,018.80-66,589.60

Finding the Fourth Proportional to 120,304.48, 166,018.80 and 66,589.60

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Solution

The fourth proportional to 120,304.48, 166,018.80 and 66,589.60 is: 91,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,304.48 : 166,018.80 = 66,589.60 : x
  2. Step 2: Convert to fraction form
    120,304.48/166,018.80 = 66,589.60/x
  3. Step 3: Cross multiply
    120,304.48x = 166,018.80 × 66,589.60
  4. Step 4: Simplify right side
    120,304.48x = 11,055,125,484.48
  5. Step 5: Solve for x
    x = 11,055,125,484.48/120,304.48
  6. Step 6: Final answer
    x = 91,892.88

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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.