Home / 135,407.20-187,218.64-118,592

Finding the Fourth Proportional to 135,407.20, 187,218.64 and 118,592

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Solution

The fourth proportional to 135,407.20, 187,218.64 and 118,592 is: 163,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,407.20 : 187,218.64 = 118,592 : x
  2. Step 2: Convert to fraction form
    135,407.20/187,218.64 = 118,592/x
  3. Step 3: Cross multiply
    135,407.20x = 187,218.64 × 118,592
  4. Step 4: Simplify right side
    135,407.20x = 22,202,632,954.88
  5. Step 5: Solve for x
    x = 22,202,632,954.88/135,407.20
  6. Step 6: Final answer
    x = 163,969.37

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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.