Home / 209,652.06-289,311.94-128,116.65

Finding the Fourth Proportional to 209,652.06, 289,311.94 and 128,116.65

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Solution

The fourth proportional to 209,652.06, 289,311.94 and 128,116.65 is: 176,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,652.06 : 289,311.94 = 128,116.65 : x
  2. Step 2: Convert to fraction form
    209,652.06/289,311.94 = 128,116.65/x
  3. Step 3: Cross multiply
    209,652.06x = 289,311.94 × 128,116.65
  4. Step 4: Simplify right side
    209,652.06x = 37,065,676,942.66
  5. Step 5: Solve for x
    x = 37,065,676,942.66/209,652.06
  6. Step 6: Final answer
    x = 176,796.15

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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.