Home / 185,506.98-278,205.75-78,890.73

Finding the Fourth Proportional to 185,506.98, 278,205.75 and 78,890.73

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Solution

The fourth proportional to 185,506.98, 278,205.75 and 78,890.73 is: 118,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,506.98 : 278,205.75 = 78,890.73 : x
  2. Step 2: Convert to fraction form
    185,506.98/278,205.75 = 78,890.73/x
  3. Step 3: Cross multiply
    185,506.98x = 278,205.75 × 78,890.73
  4. Step 4: Simplify right side
    185,506.98x = 21,947,854,707.70
  5. Step 5: Solve for x
    x = 21,947,854,707.70/185,506.98
  6. Step 6: Final answer
    x = 118,312.82

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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.