Home / 208,154.24-312,281.04-67,913

Finding the Fourth Proportional to 208,154.24, 312,281.04 and 67,913

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Solution

The fourth proportional to 208,154.24, 312,281.04 and 67,913 is: 101,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,154.24 : 312,281.04 = 67,913 : x
  2. Step 2: Convert to fraction form
    208,154.24/312,281.04 = 67,913/x
  3. Step 3: Cross multiply
    208,154.24x = 312,281.04 × 67,913
  4. Step 4: Simplify right side
    208,154.24x = 21,207,942,269.52
  5. Step 5: Solve for x
    x = 21,207,942,269.52/208,154.24
  6. Step 6: Final answer
    x = 101,885.71

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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.