Home / 199,007.19-298,510.11-80,678.25

Finding the Fourth Proportional to 199,007.19, 298,510.11 and 80,678.25

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Solution

The fourth proportional to 199,007.19, 298,510.11 and 80,678.25 is: 121,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,007.19 : 298,510.11 = 80,678.25 : x
  2. Step 2: Convert to fraction form
    199,007.19/298,510.11 = 80,678.25/x
  3. Step 3: Cross multiply
    199,007.19x = 298,510.11 × 80,678.25
  4. Step 4: Simplify right side
    199,007.19x = 24,083,273,282.11
  5. Step 5: Solve for x
    x = 24,083,273,282.11/199,007.19
  6. Step 6: Final answer
    x = 121,017.10

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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.