Home / 177,830.91-266,818.46-77,938.47

Finding the Fourth Proportional to 177,830.91, 266,818.46 and 77,938.47

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Solution

The fourth proportional to 177,830.91, 266,818.46 and 77,938.47 is: 116,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,830.91 : 266,818.46 = 77,938.47 : x
  2. Step 2: Convert to fraction form
    177,830.91/266,818.46 = 77,938.47/x
  3. Step 3: Cross multiply
    177,830.91x = 266,818.46 × 77,938.47
  4. Step 4: Simplify right side
    177,830.91x = 20,795,420,816.37
  5. Step 5: Solve for x
    x = 20,795,420,816.37/177,830.91
  6. Step 6: Final answer
    x = 116,939.30

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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.