Home / 131,566.23-181,561.43-71,136.85

Finding the Fourth Proportional to 131,566.23, 181,561.43 and 71,136.85

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Solution

The fourth proportional to 131,566.23, 181,561.43 and 71,136.85 is: 98,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,566.23 : 181,561.43 = 71,136.85 : x
  2. Step 2: Convert to fraction form
    131,566.23/181,561.43 = 71,136.85/x
  3. Step 3: Cross multiply
    131,566.23x = 181,561.43 × 71,136.85
  4. Step 4: Simplify right side
    131,566.23x = 12,915,708,211.70
  5. Step 5: Solve for x
    x = 12,915,708,211.70/131,566.23
  6. Step 6: Final answer
    x = 98,168.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.