Home / 186,100.20-279,077.40-67,710.60

Finding the Fourth Proportional to 186,100.20, 279,077.40 and 67,710.60

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Solution

The fourth proportional to 186,100.20, 279,077.40 and 67,710.60 is: 101,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,100.20 : 279,077.40 = 67,710.60 : x
  2. Step 2: Convert to fraction form
    186,100.20/279,077.40 = 67,710.60/x
  3. Step 3: Cross multiply
    186,100.20x = 279,077.40 × 67,710.60
  4. Step 4: Simplify right side
    186,100.20x = 18,896,498,200.44
  5. Step 5: Solve for x
    x = 18,896,498,200.44/186,100.20
  6. Step 6: Final answer
    x = 101,539.38

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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.