Home / 107,427.82-148,184.70-63,790.78

Finding the Fourth Proportional to 107,427.82, 148,184.70 and 63,790.78

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Solution

The fourth proportional to 107,427.82, 148,184.70 and 63,790.78 is: 87,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,427.82 : 148,184.70 = 63,790.78 : x
  2. Step 2: Convert to fraction form
    107,427.82/148,184.70 = 63,790.78/x
  3. Step 3: Cross multiply
    107,427.82x = 148,184.70 × 63,790.78
  4. Step 4: Simplify right side
    107,427.82x = 9,452,817,597.07
  5. Step 5: Solve for x
    x = 9,452,817,597.07/107,427.82
  6. Step 6: Final answer
    x = 87,992.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.