Home / 208,269.09-312,339.06-75,132.05

Finding the Fourth Proportional to 208,269.09, 312,339.06 and 75,132.05

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Solution

The fourth proportional to 208,269.09, 312,339.06 and 75,132.05 is: 112,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,269.09 : 312,339.06 = 75,132.05 : x
  2. Step 2: Convert to fraction form
    208,269.09/312,339.06 = 75,132.05/x
  3. Step 3: Cross multiply
    208,269.09x = 312,339.06 × 75,132.05
  4. Step 4: Simplify right side
    208,269.09x = 23,466,672,311.18
  5. Step 5: Solve for x
    x = 23,466,672,311.18/208,269.09
  6. Step 6: Final answer
    x = 112,674.77

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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.