Home / 235,106.20-324,450.32-133,128.90

Finding the Fourth Proportional to 235,106.20, 324,450.32 and 133,128.90

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Solution

The fourth proportional to 235,106.20, 324,450.32 and 133,128.90 is: 183,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,106.20 : 324,450.32 = 133,128.90 : x
  2. Step 2: Convert to fraction form
    235,106.20/324,450.32 = 133,128.90/x
  3. Step 3: Cross multiply
    235,106.20x = 324,450.32 × 133,128.90
  4. Step 4: Simplify right side
    235,106.20x = 43,193,714,206.25
  5. Step 5: Solve for x
    x = 43,193,714,206.25/235,106.20
  6. Step 6: Final answer
    x = 183,720.01

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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.