Home / 211,876.10-317,736.24-85,482.54

Finding the Fourth Proportional to 211,876.10, 317,736.24 and 85,482.54

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Solution

The fourth proportional to 211,876.10, 317,736.24 and 85,482.54 is: 128,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,876.10 : 317,736.24 = 85,482.54 : x
  2. Step 2: Convert to fraction form
    211,876.10/317,736.24 = 85,482.54/x
  3. Step 3: Cross multiply
    211,876.10x = 317,736.24 × 85,482.54
  4. Step 4: Simplify right side
    211,876.10x = 27,160,900,845.25
  5. Step 5: Solve for x
    x = 27,160,900,845.25/211,876.10
  6. Step 6: Final answer
    x = 128,192.38

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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.