Home / 236,212.64-325,963.84-128,780.56

Finding the Fourth Proportional to 236,212.64, 325,963.84 and 128,780.56

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Solution

The fourth proportional to 236,212.64, 325,963.84 and 128,780.56 is: 177,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,212.64 : 325,963.84 = 128,780.56 : x
  2. Step 2: Convert to fraction form
    236,212.64/325,963.84 = 128,780.56/x
  3. Step 3: Cross multiply
    236,212.64x = 325,963.84 × 128,780.56
  4. Step 4: Simplify right side
    236,212.64x = 41,977,805,854.95
  5. Step 5: Solve for x
    x = 41,977,805,854.95/236,212.64
  6. Step 6: Final answer
    x = 177,711.94

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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.