Home / 99,828.09-149,742.63-40,664.34

Finding the Fourth Proportional to 99,828.09, 149,742.63 and 40,664.34

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Solution

The fourth proportional to 99,828.09, 149,742.63 and 40,664.34 is: 60,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828.09 : 149,742.63 = 40,664.34 : x
  2. Step 2: Convert to fraction form
    99,828.09/149,742.63 = 40,664.34/x
  3. Step 3: Cross multiply
    99,828.09x = 149,742.63 × 40,664.34
  4. Step 4: Simplify right side
    99,828.09x = 6,089,185,218.81
  5. Step 5: Solve for x
    x = 6,089,185,218.81/99,828.09
  6. Step 6: Final answer
    x = 60,996.71

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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.