Home / 185,391.34-278,087.00-85,521.98

Finding the Fourth Proportional to 185,391.34, 278,087.00 and 85,521.98

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Solution

The fourth proportional to 185,391.34, 278,087.00 and 85,521.98 is: 128,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,391.34 : 278,087.00 = 85,521.98 : x
  2. Step 2: Convert to fraction form
    185,391.34/278,087.00 = 85,521.98/x
  3. Step 3: Cross multiply
    185,391.34x = 278,087.00 × 85,521.98
  4. Step 4: Simplify right side
    185,391.34x = 23,782,551,119.87
  5. Step 5: Solve for x
    x = 23,782,551,119.87/185,391.34
  6. Step 6: Final answer
    x = 128,282.97

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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.