Home / 231,968.96-320,102.01-136,457.20

Finding the Fourth Proportional to 231,968.96, 320,102.01 and 136,457.20

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Solution

The fourth proportional to 231,968.96, 320,102.01 and 136,457.20 is: 188,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,968.96 : 320,102.01 = 136,457.20 : x
  2. Step 2: Convert to fraction form
    231,968.96/320,102.01 = 136,457.20/x
  3. Step 3: Cross multiply
    231,968.96x = 320,102.01 × 136,457.20
  4. Step 4: Simplify right side
    231,968.96x = 43,680,223,316.69
  5. Step 5: Solve for x
    x = 43,680,223,316.69/231,968.96
  6. Step 6: Final answer
    x = 188,302.02

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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.