Home / 199,636.80-275,545.08-131,665.92

Finding the Fourth Proportional to 199,636.80, 275,545.08 and 131,665.92

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Solution

The fourth proportional to 199,636.80, 275,545.08 and 131,665.92 is: 181,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,636.80 : 275,545.08 = 131,665.92 : x
  2. Step 2: Convert to fraction form
    199,636.80/275,545.08 = 131,665.92/x
  3. Step 3: Cross multiply
    199,636.80x = 275,545.08 × 131,665.92
  4. Step 4: Simplify right side
    199,636.80x = 36,279,896,459.67
  5. Step 5: Solve for x
    x = 36,279,896,459.67/199,636.80
  6. Step 6: Final answer
    x = 181,729.50

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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.