Home / 257,849.73-386,853.78-123,085.77

Finding the Fourth Proportional to 257,849.73, 386,853.78 and 123,085.77

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Solution

The fourth proportional to 257,849.73, 386,853.78 and 123,085.77 is: 184,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,849.73 : 386,853.78 = 123,085.77 : x
  2. Step 2: Convert to fraction form
    257,849.73/386,853.78 = 123,085.77/x
  3. Step 3: Cross multiply
    257,849.73x = 386,853.78 × 123,085.77
  4. Step 4: Simplify right side
    257,849.73x = 47,616,195,141.43
  5. Step 5: Solve for x
    x = 47,616,195,141.43/257,849.73
  6. Step 6: Final answer
    x = 184,666.45

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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.