Home / 208,566.50-287,800.22-127,997.42

Finding the Fourth Proportional to 208,566.50, 287,800.22 and 127,997.42

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Solution

The fourth proportional to 208,566.50, 287,800.22 and 127,997.42 is: 176,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,566.50 : 287,800.22 = 127,997.42 : x
  2. Step 2: Convert to fraction form
    208,566.50/287,800.22 = 127,997.42/x
  3. Step 3: Cross multiply
    208,566.50x = 287,800.22 × 127,997.42
  4. Step 4: Simplify right side
    208,566.50x = 36,837,684,516.42
  5. Step 5: Solve for x
    x = 36,837,684,516.42/208,566.50
  6. Step 6: Final answer
    x = 176,623.21

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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.