Home / 163,740.36-225,943.38-92,145

Finding the Fourth Proportional to 163,740.36, 225,943.38 and 92,145

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Solution

The fourth proportional to 163,740.36, 225,943.38 and 92,145 is: 127,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,740.36 : 225,943.38 = 92,145 : x
  2. Step 2: Convert to fraction form
    163,740.36/225,943.38 = 92,145/x
  3. Step 3: Cross multiply
    163,740.36x = 225,943.38 × 92,145
  4. Step 4: Simplify right side
    163,740.36x = 20,819,552,750.10
  5. Step 5: Solve for x
    x = 20,819,552,750.10/163,740.36
  6. Step 6: Final answer
    x = 127,149.79

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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.