Home / 140,545.36-210,480.22-80,391.48

Finding the Fourth Proportional to 140,545.36, 210,480.22 and 80,391.48

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Solution

The fourth proportional to 140,545.36, 210,480.22 and 80,391.48 is: 120,393.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,545.36 : 210,480.22 = 80,391.48 : x
  2. Step 2: Convert to fraction form
    140,545.36/210,480.22 = 80,391.48/x
  3. Step 3: Cross multiply
    140,545.36x = 210,480.22 × 80,391.48
  4. Step 4: Simplify right side
    140,545.36x = 16,920,816,396.53
  5. Step 5: Solve for x
    x = 16,920,816,396.53/140,545.36
  6. Step 6: Final answer
    x = 120,393.99

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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.