Home / 208,585.04-312,691.96-75,435.70

Finding the Fourth Proportional to 208,585.04, 312,691.96 and 75,435.70

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Solution

The fourth proportional to 208,585.04, 312,691.96 and 75,435.70 is: 113,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,585.04 : 312,691.96 = 75,435.70 : x
  2. Step 2: Convert to fraction form
    208,585.04/312,691.96 = 75,435.70/x
  3. Step 3: Cross multiply
    208,585.04x = 312,691.96 × 75,435.70
  4. Step 4: Simplify right side
    208,585.04x = 23,588,136,886.97
  5. Step 5: Solve for x
    x = 23,588,136,886.97/208,585.04
  6. Step 6: Final answer
    x = 113,086.43

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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.