Home / 208,815.06-312,777.90-102,034.79

Finding the Fourth Proportional to 208,815.06, 312,777.90 and 102,034.79

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Solution

The fourth proportional to 208,815.06, 312,777.90 and 102,034.79 is: 152,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,815.06 : 312,777.90 = 102,034.79 : x
  2. Step 2: Convert to fraction form
    208,815.06/312,777.90 = 102,034.79/x
  3. Step 3: Cross multiply
    208,815.06x = 312,777.90 × 102,034.79
  4. Step 4: Simplify right side
    208,815.06x = 31,914,225,269.08
  5. Step 5: Solve for x
    x = 31,914,225,269.08/208,815.06
  6. Step 6: Final answer
    x = 152,834.88

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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.