Home / 257,933.21-386,801.60-100,124.96

Finding the Fourth Proportional to 257,933.21, 386,801.60 and 100,124.96

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Solution

The fourth proportional to 257,933.21, 386,801.60 and 100,124.96 is: 150,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,933.21 : 386,801.60 = 100,124.96 : x
  2. Step 2: Convert to fraction form
    257,933.21/386,801.60 = 100,124.96/x
  3. Step 3: Cross multiply
    257,933.21x = 386,801.60 × 100,124.96
  4. Step 4: Simplify right side
    257,933.21x = 38,728,492,293.30
  5. Step 5: Solve for x
    x = 38,728,492,293.30/257,933.21
  6. Step 6: Final answer
    x = 150,149.31

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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.