Home / 185,416.75-278,166.48-78,804.07

Finding the Fourth Proportional to 185,416.75, 278,166.48 and 78,804.07

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Solution

The fourth proportional to 185,416.75, 278,166.48 and 78,804.07 is: 118,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,416.75 : 278,166.48 = 78,804.07 : x
  2. Step 2: Convert to fraction form
    185,416.75/278,166.48 = 78,804.07/x
  3. Step 3: Cross multiply
    185,416.75x = 278,166.48 × 78,804.07
  4. Step 4: Simplify right side
    185,416.75x = 21,920,650,761.57
  5. Step 5: Solve for x
    x = 21,920,650,761.57/185,416.75
  6. Step 6: Final answer
    x = 118,223.68

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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.