Home / 211,895.34-317,841.07-85,446.04

Finding the Fourth Proportional to 211,895.34, 317,841.07 and 85,446.04

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Solution

The fourth proportional to 211,895.34, 317,841.07 and 85,446.04 is: 128,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,895.34 : 317,841.07 = 85,446.04 : x
  2. Step 2: Convert to fraction form
    211,895.34/317,841.07 = 85,446.04/x
  3. Step 3: Cross multiply
    211,895.34x = 317,841.07 × 85,446.04
  4. Step 4: Simplify right side
    211,895.34x = 27,158,260,780.86
  5. Step 5: Solve for x
    x = 27,158,260,780.86/211,895.34
  6. Step 6: Final answer
    x = 128,168.28

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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.