Home / 208,348.92-312,545.34-68,107.32

Finding the Fourth Proportional to 208,348.92, 312,545.34 and 68,107.32

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Solution

The fourth proportional to 208,348.92, 312,545.34 and 68,107.32 is: 102,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,348.92 : 312,545.34 = 68,107.32 : x
  2. Step 2: Convert to fraction form
    208,348.92/312,545.34 = 68,107.32/x
  3. Step 3: Cross multiply
    208,348.92x = 312,545.34 × 68,107.32
  4. Step 4: Simplify right side
    208,348.92x = 21,286,625,485.89
  5. Step 5: Solve for x
    x = 21,286,625,485.89/208,348.92
  6. Step 6: Final answer
    x = 102,168.16

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1.5x scale

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.