Home / 211,466.79-317,324.12-85,087.35

Finding the Fourth Proportional to 211,466.79, 317,324.12 and 85,087.35

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Solution

The fourth proportional to 211,466.79, 317,324.12 and 85,087.35 is: 127,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,466.79 : 317,324.12 = 85,087.35 : x
  2. Step 2: Convert to fraction form
    211,466.79/317,324.12 = 85,087.35/x
  3. Step 3: Cross multiply
    211,466.79x = 317,324.12 × 85,087.35
  4. Step 4: Simplify right side
    211,466.79x = 27,000,268,036.45
  5. Step 5: Solve for x
    x = 27,000,268,036.45/211,466.79
  6. Step 6: Final answer
    x = 127,680.89

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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.