Home / 236,081.13-325,791.45-128,650.90

Finding the Fourth Proportional to 236,081.13, 325,791.45 and 128,650.90

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Solution

The fourth proportional to 236,081.13, 325,791.45 and 128,650.90 is: 177,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,081.13 : 325,791.45 = 128,650.90 : x
  2. Step 2: Convert to fraction form
    236,081.13/325,791.45 = 128,650.90/x
  3. Step 3: Cross multiply
    236,081.13x = 325,791.45 × 128,650.90
  4. Step 4: Simplify right side
    236,081.13x = 41,913,363,254.81
  5. Step 5: Solve for x
    x = 41,913,363,254.81/236,081.13
  6. Step 6: Final answer
    x = 177,537.96

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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.