Home / 156,629.94-216,143.82-85,008.52

Finding the Fourth Proportional to 156,629.94, 216,143.82 and 85,008.52

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Solution

The fourth proportional to 156,629.94, 216,143.82 and 85,008.52 is: 117,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,629.94 : 216,143.82 = 85,008.52 : x
  2. Step 2: Convert to fraction form
    156,629.94/216,143.82 = 85,008.52/x
  3. Step 3: Cross multiply
    156,629.94x = 216,143.82 × 85,008.52
  4. Step 4: Simplify right side
    156,629.94x = 18,374,066,245.35
  5. Step 5: Solve for x
    x = 18,374,066,245.35/156,629.94
  6. Step 6: Final answer
    x = 117,308.77

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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.