Home / 84,982.90-127,474.35-79,734.10

Finding the Fourth Proportional to 84,982.90, 127,474.35 and 79,734.10

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Solution

The fourth proportional to 84,982.90, 127,474.35 and 79,734.10 is: 119,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,982.90 : 127,474.35 = 79,734.10 : x
  2. Step 2: Convert to fraction form
    84,982.90/127,474.35 = 79,734.10/x
  3. Step 3: Cross multiply
    84,982.90x = 127,474.35 × 79,734.10
  4. Step 4: Simplify right side
    84,982.90x = 10,164,052,570.34
  5. Step 5: Solve for x
    x = 10,164,052,570.34/84,982.90
  6. Step 6: Final answer
    x = 119,601.15

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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.