Home / 217,747.09-326,620.51-68,000.21

Finding the Fourth Proportional to 217,747.09, 326,620.51 and 68,000.21

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Solution

The fourth proportional to 217,747.09, 326,620.51 and 68,000.21 is: 102,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,747.09 : 326,620.51 = 68,000.21 : x
  2. Step 2: Convert to fraction form
    217,747.09/326,620.51 = 68,000.21/x
  3. Step 3: Cross multiply
    217,747.09x = 326,620.51 × 68,000.21
  4. Step 4: Simplify right side
    217,747.09x = 22,210,264,529.27
  5. Step 5: Solve for x
    x = 22,210,264,529.27/217,747.09
  6. Step 6: Final answer
    x = 102,000.28

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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.