Home / 213,580.15-320,952.20-113,811.64

Finding the Fourth Proportional to 213,580.15, 320,952.20 and 113,811.64

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Solution

The fourth proportional to 213,580.15, 320,952.20 and 113,811.64 is: 171,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,580.15 : 320,952.20 = 113,811.64 : x
  2. Step 2: Convert to fraction form
    213,580.15/320,952.20 = 113,811.64/x
  3. Step 3: Cross multiply
    213,580.15x = 320,952.20 × 113,811.64
  4. Step 4: Simplify right side
    213,580.15x = 36,528,094,872.17
  5. Step 5: Solve for x
    x = 36,528,094,872.17/213,580.15
  6. Step 6: Final answer
    x = 171,027.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.