Home / 164,025.86-226,372.42-100,405.70

Finding the Fourth Proportional to 164,025.86, 226,372.42 and 100,405.70

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Solution

The fourth proportional to 164,025.86, 226,372.42 and 100,405.70 is: 138,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,025.86 : 226,372.42 = 100,405.70 : x
  2. Step 2: Convert to fraction form
    164,025.86/226,372.42 = 100,405.70/x
  3. Step 3: Cross multiply
    164,025.86x = 226,372.42 × 100,405.70
  4. Step 4: Simplify right side
    164,025.86x = 22,729,081,290.79
  5. Step 5: Solve for x
    x = 22,729,081,290.79/164,025.86
  6. Step 6: Final answer
    x = 138,570.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.