Home / 128,271.94-177,065.21-114,819.93

Finding the Fourth Proportional to 128,271.94, 177,065.21 and 114,819.93

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Solution

The fourth proportional to 128,271.94, 177,065.21 and 114,819.93 is: 158,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,271.94 : 177,065.21 = 114,819.93 : x
  2. Step 2: Convert to fraction form
    128,271.94/177,065.21 = 114,819.93/x
  3. Step 3: Cross multiply
    128,271.94x = 177,065.21 × 114,819.93
  4. Step 4: Simplify right side
    128,271.94x = 20,330,615,304.69
  5. Step 5: Solve for x
    x = 20,330,615,304.69/128,271.94
  6. Step 6: Final answer
    x = 158,496.21

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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.