Home / 236,119.86-325,835.85-128,687.58

Finding the Fourth Proportional to 236,119.86, 325,835.85 and 128,687.58

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Solution

The fourth proportional to 236,119.86, 325,835.85 and 128,687.58 is: 177,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,119.86 : 325,835.85 = 128,687.58 : x
  2. Step 2: Convert to fraction form
    236,119.86/325,835.85 = 128,687.58/x
  3. Step 3: Cross multiply
    236,119.86x = 325,835.85 × 128,687.58
  4. Step 4: Simplify right side
    236,119.86x = 41,931,027,013.74
  5. Step 5: Solve for x
    x = 41,931,027,013.74/236,119.86
  6. Step 6: Final answer
    x = 177,583.65

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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.