Home / 236,112.81-325,826.18-128,680.53

Finding the Fourth Proportional to 236,112.81, 325,826.18 and 128,680.53

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Solution

The fourth proportional to 236,112.81, 325,826.18 and 128,680.53 is: 177,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,112.81 : 325,826.18 = 128,680.53 : x
  2. Step 2: Convert to fraction form
    236,112.81/325,826.18 = 128,680.53/x
  3. Step 3: Cross multiply
    236,112.81x = 325,826.18 × 128,680.53
  4. Step 4: Simplify right side
    236,112.81x = 41,927,484,147.58
  5. Step 5: Solve for x
    x = 41,927,484,147.58/236,112.81
  6. Step 6: Final answer
    x = 177,573.95

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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.