Home / 171,983.28-257,821.02-66,777.24

Finding the Fourth Proportional to 171,983.28, 257,821.02 and 66,777.24

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Solution

The fourth proportional to 171,983.28, 257,821.02 and 66,777.24 is: 100,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,983.28 : 257,821.02 = 66,777.24 : x
  2. Step 2: Convert to fraction form
    171,983.28/257,821.02 = 66,777.24/x
  3. Step 3: Cross multiply
    171,983.28x = 257,821.02 × 66,777.24
  4. Step 4: Simplify right side
    171,983.28x = 17,216,576,129.58
  5. Step 5: Solve for x
    x = 17,216,576,129.58/171,983.28
  6. Step 6: Final answer
    x = 100,106.10

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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.