Home / 211,914.83-317,864.03-71,673.45

Finding the Fourth Proportional to 211,914.83, 317,864.03 and 71,673.45

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Solution

The fourth proportional to 211,914.83, 317,864.03 and 71,673.45 is: 107,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,914.83 : 317,864.03 = 71,673.45 : x
  2. Step 2: Convert to fraction form
    211,914.83/317,864.03 = 71,673.45/x
  3. Step 3: Cross multiply
    211,914.83x = 317,864.03 × 71,673.45
  4. Step 4: Simplify right side
    211,914.83x = 22,782,411,302.64
  5. Step 5: Solve for x
    x = 22,782,411,302.64/211,914.83
  6. Step 6: Final answer
    x = 107,507.40

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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.