Home / 127,909.47-176,584.28-76,933.58

Finding the Fourth Proportional to 127,909.47, 176,584.28 and 76,933.58

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Solution

The fourth proportional to 127,909.47, 176,584.28 and 76,933.58 is: 106,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,909.47 : 176,584.28 = 76,933.58 : x
  2. Step 2: Convert to fraction form
    127,909.47/176,584.28 = 76,933.58/x
  3. Step 3: Cross multiply
    127,909.47x = 176,584.28 × 76,933.58
  4. Step 4: Simplify right side
    127,909.47x = 13,585,260,447.45
  5. Step 5: Solve for x
    x = 13,585,260,447.45/127,909.47
  6. Step 6: Final answer
    x = 106,209.97

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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.