Home / 84,149.84-126,039.31-69,558.50

Finding the Fourth Proportional to 84,149.84, 126,039.31 and 69,558.50

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Solution

The fourth proportional to 84,149.84, 126,039.31 and 69,558.50 is: 104,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,149.84 : 126,039.31 = 69,558.50 : x
  2. Step 2: Convert to fraction form
    84,149.84/126,039.31 = 69,558.50/x
  3. Step 3: Cross multiply
    84,149.84x = 126,039.31 × 69,558.50
  4. Step 4: Simplify right side
    84,149.84x = 8,767,104,540.54
  5. Step 5: Solve for x
    x = 8,767,104,540.54/84,149.84
  6. Step 6: Final answer
    x = 104,184.45

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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.