Home / 84,766.10-127,181.55-83,437.70

Finding the Fourth Proportional to 84,766.10, 127,181.55 and 83,437.70

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Solution

The fourth proportional to 84,766.10, 127,181.55 and 83,437.70 is: 125,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,766.10 : 127,181.55 = 83,437.70 : x
  2. Step 2: Convert to fraction form
    84,766.10/127,181.55 = 83,437.70/x
  3. Step 3: Cross multiply
    84,766.10x = 127,181.55 × 83,437.70
  4. Step 4: Simplify right side
    84,766.10x = 10,611,736,014.44
  5. Step 5: Solve for x
    x = 10,611,736,014.44/84,766.10
  6. Step 6: Final answer
    x = 125,188.44

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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.