Home / 257,917.56-386,985.68-124,896.93

Finding the Fourth Proportional to 257,917.56, 386,985.68 and 124,896.93

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Solution

The fourth proportional to 257,917.56, 386,985.68 and 124,896.93 is: 187,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,917.56 : 386,985.68 = 124,896.93 : x
  2. Step 2: Convert to fraction form
    257,917.56/386,985.68 = 124,896.93/x
  3. Step 3: Cross multiply
    257,917.56x = 386,985.68 × 124,896.93
  4. Step 4: Simplify right side
    257,917.56x = 48,333,323,385.96
  5. Step 5: Solve for x
    x = 48,333,323,385.96/257,917.56
  6. Step 6: Final answer
    x = 187,398.34

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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.