Home / 92,555.12-127,788.23-86,198.45

Finding the Fourth Proportional to 92,555.12, 127,788.23 and 86,198.45

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Solution

The fourth proportional to 92,555.12, 127,788.23 and 86,198.45 is: 119,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,555.12 : 127,788.23 = 86,198.45 : x
  2. Step 2: Convert to fraction form
    92,555.12/127,788.23 = 86,198.45/x
  3. Step 3: Cross multiply
    92,555.12x = 127,788.23 × 86,198.45
  4. Step 4: Simplify right side
    92,555.12x = 11,015,146,930.80
  5. Step 5: Solve for x
    x = 11,015,146,930.80/92,555.12
  6. Step 6: Final answer
    x = 119,011.75

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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.