Home / 257,819.04-386,739.06-122,813.72

Finding the Fourth Proportional to 257,819.04, 386,739.06 and 122,813.72

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Solution

The fourth proportional to 257,819.04, 386,739.06 and 122,813.72 is: 184,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,819.04 : 386,739.06 = 122,813.72 : x
  2. Step 2: Convert to fraction form
    257,819.04/386,739.06 = 122,813.72/x
  3. Step 3: Cross multiply
    257,819.04x = 386,739.06 × 122,813.72
  4. Step 4: Simplify right side
    257,819.04x = 47,496,862,627.90
  5. Step 5: Solve for x
    x = 47,496,862,627.90/257,819.04
  6. Step 6: Final answer
    x = 184,225.58

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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.