Home / 213,623.40-319,997.70-108,501.60

Finding the Fourth Proportional to 213,623.40, 319,997.70 and 108,501.60

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Solution

The fourth proportional to 213,623.40, 319,997.70 and 108,501.60 is: 162,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,623.40 : 319,997.70 = 108,501.60 : x
  2. Step 2: Convert to fraction form
    213,623.40/319,997.70 = 108,501.60/x
  3. Step 3: Cross multiply
    213,623.40x = 319,997.70 × 108,501.60
  4. Step 4: Simplify right side
    213,623.40x = 34,720,262,446.32
  5. Step 5: Solve for x
    x = 34,720,262,446.32/213,623.40
  6. Step 6: Final answer
    x = 162,530.24

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1.5x scale

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.