Home / 135,918.18-187,553.36-79,362.36

Finding the Fourth Proportional to 135,918.18, 187,553.36 and 79,362.36

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Solution

The fourth proportional to 135,918.18, 187,553.36 and 79,362.36 is: 109,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,918.18 : 187,553.36 = 79,362.36 : x
  2. Step 2: Convert to fraction form
    135,918.18/187,553.36 = 79,362.36/x
  3. Step 3: Cross multiply
    135,918.18x = 187,553.36 × 79,362.36
  4. Step 4: Simplify right side
    135,918.18x = 14,884,677,275.53
  5. Step 5: Solve for x
    x = 14,884,677,275.53/135,918.18
  6. Step 6: Final answer
    x = 109,512.04

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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.