Home / 211,934.94-317,853.06-78,877.86

Finding the Fourth Proportional to 211,934.94, 317,853.06 and 78,877.86

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Solution

The fourth proportional to 211,934.94, 317,853.06 and 78,877.86 is: 118,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,934.94 : 317,853.06 = 78,877.86 : x
  2. Step 2: Convert to fraction form
    211,934.94/317,853.06 = 78,877.86/x
  3. Step 3: Cross multiply
    211,934.94x = 317,853.06 × 78,877.86
  4. Step 4: Simplify right side
    211,934.94x = 25,071,569,167.25
  5. Step 5: Solve for x
    x = 25,071,569,167.25/211,934.94
  6. Step 6: Final answer
    x = 118,298.42

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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.