Home / 185,606.09-278,450.04-78,984.35

Finding the Fourth Proportional to 185,606.09, 278,450.04 and 78,984.35

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Solution

The fourth proportional to 185,606.09, 278,450.04 and 78,984.35 is: 118,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,606.09 : 278,450.04 = 78,984.35 : x
  2. Step 2: Convert to fraction form
    185,606.09/278,450.04 = 78,984.35/x
  3. Step 3: Cross multiply
    185,606.09x = 278,450.04 × 78,984.35
  4. Step 4: Simplify right side
    185,606.09x = 21,993,195,416.87
  5. Step 5: Solve for x
    x = 21,993,195,416.87/185,606.09
  6. Step 6: Final answer
    x = 118,493.93

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1.5x scale

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.