Home / 163,976.82-226,351.49-128,178.36

Finding the Fourth Proportional to 163,976.82, 226,351.49 and 128,178.36

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Solution

The fourth proportional to 163,976.82, 226,351.49 and 128,178.36 is: 176,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,976.82 : 226,351.49 = 128,178.36 : x
  2. Step 2: Convert to fraction form
    163,976.82/226,351.49 = 128,178.36/x
  3. Step 3: Cross multiply
    163,976.82x = 226,351.49 × 128,178.36
  4. Step 4: Simplify right side
    163,976.82x = 29,013,362,130.86
  5. Step 5: Solve for x
    x = 29,013,362,130.86/163,976.82
  6. Step 6: Final answer
    x = 176,935.75

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1.5x scale

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.