Home / 169,341.60-253,980.06-85,078.36

Finding the Fourth Proportional to 169,341.60, 253,980.06 and 85,078.36

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Solution

The fourth proportional to 169,341.60, 253,980.06 and 85,078.36 is: 127,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,341.60 : 253,980.06 = 85,078.36 : x
  2. Step 2: Convert to fraction form
    169,341.60/253,980.06 = 85,078.36/x
  3. Step 3: Cross multiply
    169,341.60x = 253,980.06 × 85,078.36
  4. Step 4: Simplify right side
    169,341.60x = 21,608,206,977.50
  5. Step 5: Solve for x
    x = 21,608,206,977.50/169,341.60
  6. Step 6: Final answer
    x = 127,601.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.