Home / 208,142.40-312,121.26-95,795.40

Finding the Fourth Proportional to 208,142.40, 312,121.26 and 95,795.40

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Solution

The fourth proportional to 208,142.40, 312,121.26 and 95,795.40 is: 143,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,142.40 : 312,121.26 = 95,795.40 : x
  2. Step 2: Convert to fraction form
    208,142.40/312,121.26 = 95,795.40/x
  3. Step 3: Cross multiply
    208,142.40x = 312,121.26 × 95,795.40
  4. Step 4: Simplify right side
    208,142.40x = 29,899,780,950.20
  5. Step 5: Solve for x
    x = 29,899,780,950.20/208,142.40
  6. Step 6: Final answer
    x = 143,650.60

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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.