Home / 257,817.10-386,736.14-122,811.77

Finding the Fourth Proportional to 257,817.10, 386,736.14 and 122,811.77

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Solution

The fourth proportional to 257,817.10, 386,736.14 and 122,811.77 is: 184,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,817.10 : 386,736.14 = 122,811.77 : x
  2. Step 2: Convert to fraction form
    257,817.10/386,736.14 = 122,811.77/x
  3. Step 3: Cross multiply
    257,817.10x = 386,736.14 × 122,811.77
  4. Step 4: Simplify right side
    257,817.10x = 47,495,749,876.37
  5. Step 5: Solve for x
    x = 47,495,749,876.37/257,817.10
  6. Step 6: Final answer
    x = 184,222.65

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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.