Home / 208,005.76-312,007.02-108,114.40

Finding the Fourth Proportional to 208,005.76, 312,007.02 and 108,114.40

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Solution

The fourth proportional to 208,005.76, 312,007.02 and 108,114.40 is: 162,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,005.76 : 312,007.02 = 108,114.40 : x
  2. Step 2: Convert to fraction form
    208,005.76/312,007.02 = 108,114.40/x
  3. Step 3: Cross multiply
    208,005.76x = 312,007.02 × 108,114.40
  4. Step 4: Simplify right side
    208,005.76x = 33,732,451,763.09
  5. Step 5: Solve for x
    x = 33,732,451,763.09/208,005.76
  6. Step 6: Final answer
    x = 162,170.76

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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.