Home / 107,040.79-160,514.70-57,109.78

Finding the Fourth Proportional to 107,040.79, 160,514.70 and 57,109.78

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Solution

The fourth proportional to 107,040.79, 160,514.70 and 57,109.78 is: 85,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,040.79 : 160,514.70 = 57,109.78 : x
  2. Step 2: Convert to fraction form
    107,040.79/160,514.70 = 57,109.78/x
  3. Step 3: Cross multiply
    107,040.79x = 160,514.70 × 57,109.78
  4. Step 4: Simplify right side
    107,040.79x = 9,166,959,203.77
  5. Step 5: Solve for x
    x = 9,166,959,203.77/107,040.79
  6. Step 6: Final answer
    x = 85,639.87

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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.