Home / 120,566.24-166,354.48-72,160.64

Finding the Fourth Proportional to 120,566.24, 166,354.48 and 72,160.64

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Solution

The fourth proportional to 120,566.24, 166,354.48 and 72,160.64 is: 99,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,566.24 : 166,354.48 = 72,160.64 : x
  2. Step 2: Convert to fraction form
    120,566.24/166,354.48 = 72,160.64/x
  3. Step 3: Cross multiply
    120,566.24x = 166,354.48 × 72,160.64
  4. Step 4: Simplify right side
    120,566.24x = 12,004,245,743.67
  5. Step 5: Solve for x
    x = 12,004,245,743.67/120,566.24
  6. Step 6: Final answer
    x = 99,565.56

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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.