Home / 211,467.79-317,325.62-85,088.35

Finding the Fourth Proportional to 211,467.79, 317,325.62 and 85,088.35

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Solution

The fourth proportional to 211,467.79, 317,325.62 and 85,088.35 is: 127,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,467.79 : 317,325.62 = 85,088.35 : x
  2. Step 2: Convert to fraction form
    211,467.79/317,325.62 = 85,088.35/x
  3. Step 3: Cross multiply
    211,467.79x = 317,325.62 × 85,088.35
  4. Step 4: Simplify right side
    211,467.79x = 27,000,713,418.53
  5. Step 5: Solve for x
    x = 27,000,713,418.53/211,467.79
  6. Step 6: Final answer
    x = 127,682.39

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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.