Home / 213,071.21-319,749.50-88,412.33

Finding the Fourth Proportional to 213,071.21, 319,749.50 and 88,412.33

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Solution

The fourth proportional to 213,071.21, 319,749.50 and 88,412.33 is: 132,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,071.21 : 319,749.50 = 88,412.33 : x
  2. Step 2: Convert to fraction form
    213,071.21/319,749.50 = 88,412.33/x
  3. Step 3: Cross multiply
    213,071.21x = 319,749.50 × 88,412.33
  4. Step 4: Simplify right side
    213,071.21x = 28,269,797,869.27
  5. Step 5: Solve for x
    x = 28,269,797,869.27/213,071.21
  6. Step 6: Final answer
    x = 132,677.70

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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.