Home / 202,353.38-279,246.10-111,709.47

Finding the Fourth Proportional to 202,353.38, 279,246.10 and 111,709.47

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Solution

The fourth proportional to 202,353.38, 279,246.10 and 111,709.47 is: 154,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.38 : 279,246.10 = 111,709.47 : x
  2. Step 2: Convert to fraction form
    202,353.38/279,246.10 = 111,709.47/x
  3. Step 3: Cross multiply
    202,353.38x = 279,246.10 × 111,709.47
  4. Step 4: Simplify right side
    202,353.38x = 31,194,433,830.57
  5. Step 5: Solve for x
    x = 31,194,433,830.57/202,353.38
  6. Step 6: Final answer
    x = 154,158.20

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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.