Home / 211,362.66-316,951.83-79,942.50

Finding the Fourth Proportional to 211,362.66, 316,951.83 and 79,942.50

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Solution

The fourth proportional to 211,362.66, 316,951.83 and 79,942.50 is: 119,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,362.66 : 316,951.83 = 79,942.50 : x
  2. Step 2: Convert to fraction form
    211,362.66/316,951.83 = 79,942.50/x
  3. Step 3: Cross multiply
    211,362.66x = 316,951.83 × 79,942.50
  4. Step 4: Simplify right side
    211,362.66x = 25,337,921,669.78
  5. Step 5: Solve for x
    x = 25,337,921,669.78/211,362.66
  6. Step 6: Final answer
    x = 119,878.89

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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.