Home / 171,938.76-257,825.18-72,072.14

Finding the Fourth Proportional to 171,938.76, 257,825.18 and 72,072.14

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Solution

The fourth proportional to 171,938.76, 257,825.18 and 72,072.14 is: 108,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,938.76 : 257,825.18 = 72,072.14 : x
  2. Step 2: Convert to fraction form
    171,938.76/257,825.18 = 72,072.14/x
  3. Step 3: Cross multiply
    171,938.76x = 257,825.18 × 72,072.14
  4. Step 4: Simplify right side
    171,938.76x = 18,582,012,468.49
  5. Step 5: Solve for x
    x = 18,582,012,468.49/171,938.76
  6. Step 6: Final answer
    x = 108,073.44

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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.