Home / 208,306.42-312,475.83-68,079.22

Finding the Fourth Proportional to 208,306.42, 312,475.83 and 68,079.22

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Solution

The fourth proportional to 208,306.42, 312,475.83 and 68,079.22 is: 102,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,306.42 : 312,475.83 = 68,079.22 : x
  2. Step 2: Convert to fraction form
    208,306.42/312,475.83 = 68,079.22/x
  3. Step 3: Cross multiply
    208,306.42x = 312,475.83 × 68,079.22
  4. Step 4: Simplify right side
    208,306.42x = 21,273,110,775.25
  5. Step 5: Solve for x
    x = 21,273,110,775.25/208,306.42
  6. Step 6: Final answer
    x = 102,124.12

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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.