Home / 156,867.44-216,653.33-121,485.42

Finding the Fourth Proportional to 156,867.44, 216,653.33 and 121,485.42

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Solution

The fourth proportional to 156,867.44, 216,653.33 and 121,485.42 is: 167,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,867.44 : 216,653.33 = 121,485.42 : x
  2. Step 2: Convert to fraction form
    156,867.44/216,653.33 = 121,485.42/x
  3. Step 3: Cross multiply
    156,867.44x = 216,653.33 × 121,485.42
  4. Step 4: Simplify right side
    156,867.44x = 26,320,221,093.16
  5. Step 5: Solve for x
    x = 26,320,221,093.16/156,867.44
  6. Step 6: Final answer
    x = 167,786.39

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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.