Home / 120,586.50-180,876.98-31,846.22

Finding the Fourth Proportional to 120,586.50, 180,876.98 and 31,846.22

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Solution

The fourth proportional to 120,586.50, 180,876.98 and 31,846.22 is: 47,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.50 : 180,876.98 = 31,846.22 : x
  2. Step 2: Convert to fraction form
    120,586.50/180,876.98 = 31,846.22/x
  3. Step 3: Cross multiply
    120,586.50x = 180,876.98 × 31,846.22
  4. Step 4: Simplify right side
    120,586.50x = 5,760,248,098.02
  5. Step 5: Solve for x
    x = 5,760,248,098.02/120,586.50
  6. Step 6: Final answer
    x = 47,768.60

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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.