Home / 185,623.80-278,435.70-45,383.80

Finding the Fourth Proportional to 185,623.80, 278,435.70 and 45,383.80

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Solution

The fourth proportional to 185,623.80, 278,435.70 and 45,383.80 is: 68,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,623.80 : 278,435.70 = 45,383.80 : x
  2. Step 2: Convert to fraction form
    185,623.80/278,435.70 = 45,383.80/x
  3. Step 3: Cross multiply
    185,623.80x = 278,435.70 × 45,383.80
  4. Step 4: Simplify right side
    185,623.80x = 12,636,470,121.66
  5. Step 5: Solve for x
    x = 12,636,470,121.66/185,623.80
  6. Step 6: Final answer
    x = 68,075.70

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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.