Home / 212,822.37-319,037.49-72,483.39

Finding the Fourth Proportional to 212,822.37, 319,037.49 and 72,483.39

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Solution

The fourth proportional to 212,822.37, 319,037.49 and 72,483.39 is: 108,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822.37 : 319,037.49 = 72,483.39 : x
  2. Step 2: Convert to fraction form
    212,822.37/319,037.49 = 72,483.39/x
  3. Step 3: Cross multiply
    212,822.37x = 319,037.49 × 72,483.39
  4. Step 4: Simplify right side
    212,822.37x = 23,124,918,812.29
  5. Step 5: Solve for x
    x = 23,124,918,812.29/212,822.37
  6. Step 6: Final answer
    x = 108,658.31

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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.