Home / 180,408.43-270,607.05-85,706.80

Finding the Fourth Proportional to 180,408.43, 270,607.05 and 85,706.80

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Solution

The fourth proportional to 180,408.43, 270,607.05 and 85,706.80 is: 128,557.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,408.43 : 270,607.05 = 85,706.80 : x
  2. Step 2: Convert to fraction form
    180,408.43/270,607.05 = 85,706.80/x
  3. Step 3: Cross multiply
    180,408.43x = 270,607.05 × 85,706.80
  4. Step 4: Simplify right side
    180,408.43x = 23,192,864,312.94
  5. Step 5: Solve for x
    x = 23,192,864,312.94/180,408.43
  6. Step 6: Final answer
    x = 128,557.54

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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.