Home / 198,205.38-273,434.13-117,636.30

Finding the Fourth Proportional to 198,205.38, 273,434.13 and 117,636.30

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Solution

The fourth proportional to 198,205.38, 273,434.13 and 117,636.30 is: 162,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,205.38 : 273,434.13 = 117,636.30 : x
  2. Step 2: Convert to fraction form
    198,205.38/273,434.13 = 117,636.30/x
  3. Step 3: Cross multiply
    198,205.38x = 273,434.13 × 117,636.30
  4. Step 4: Simplify right side
    198,205.38x = 32,165,779,346.92
  5. Step 5: Solve for x
    x = 32,165,779,346.92/198,205.38
  6. Step 6: Final answer
    x = 162,285.10

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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.