Home / 208,013.92-311,738.14-87,971.08

Finding the Fourth Proportional to 208,013.92, 311,738.14 and 87,971.08

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Solution

The fourth proportional to 208,013.92, 311,738.14 and 87,971.08 is: 131,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,013.92 : 311,738.14 = 87,971.08 : x
  2. Step 2: Convert to fraction form
    208,013.92/311,738.14 = 87,971.08/x
  3. Step 3: Cross multiply
    208,013.92x = 311,738.14 × 87,971.08
  4. Step 4: Simplify right side
    208,013.92x = 27,423,940,852.99
  5. Step 5: Solve for x
    x = 27,423,940,852.99/208,013.92
  6. Step 6: Final answer
    x = 131,837.05

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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.