Home / 211,445.09-317,325.32-85,086.46

Finding the Fourth Proportional to 211,445.09, 317,325.32 and 85,086.46

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Solution

The fourth proportional to 211,445.09, 317,325.32 and 85,086.46 is: 127,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,445.09 : 317,325.32 = 85,086.46 : x
  2. Step 2: Convert to fraction form
    211,445.09/317,325.32 = 85,086.46/x
  3. Step 3: Cross multiply
    211,445.09x = 317,325.32 × 85,086.46
  4. Step 4: Simplify right side
    211,445.09x = 27,000,088,147.17
  5. Step 5: Solve for x
    x = 27,000,088,147.17/211,445.09
  6. Step 6: Final answer
    x = 127,693.14

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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.