Home / 163,977.82-226,352.87-128,179.36

Finding the Fourth Proportional to 163,977.82, 226,352.87 and 128,179.36

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Solution

The fourth proportional to 163,977.82, 226,352.87 and 128,179.36 is: 176,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,977.82 : 226,352.87 = 128,179.36 : x
  2. Step 2: Convert to fraction form
    163,977.82/226,352.87 = 128,179.36/x
  3. Step 3: Cross multiply
    163,977.82x = 226,352.87 × 128,179.36
  4. Step 4: Simplify right side
    163,977.82x = 29,013,766,010.76
  5. Step 5: Solve for x
    x = 29,013,766,010.76/163,977.82
  6. Step 6: Final answer
    x = 176,937.14

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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.