Home / 136,563.26-188,457.41-76,132.68

Finding the Fourth Proportional to 136,563.26, 188,457.41 and 76,132.68

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Solution

The fourth proportional to 136,563.26, 188,457.41 and 76,132.68 is: 105,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,563.26 : 188,457.41 = 76,132.68 : x
  2. Step 2: Convert to fraction form
    136,563.26/188,457.41 = 76,132.68/x
  3. Step 3: Cross multiply
    136,563.26x = 188,457.41 × 76,132.68
  4. Step 4: Simplify right side
    136,563.26x = 14,347,767,308.50
  5. Step 5: Solve for x
    x = 14,347,767,308.50/136,563.26
  6. Step 6: Final answer
    x = 105,063.16

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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.