Home / 126,971.47-190,425.75-52,112.89

Finding the Fourth Proportional to 126,971.47, 190,425.75 and 52,112.89

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Solution

The fourth proportional to 126,971.47, 190,425.75 and 52,112.89 is: 78,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,971.47 : 190,425.75 = 52,112.89 : x
  2. Step 2: Convert to fraction form
    126,971.47/190,425.75 = 52,112.89/x
  3. Step 3: Cross multiply
    126,971.47x = 190,425.75 × 52,112.89
  4. Step 4: Simplify right side
    126,971.47x = 9,923,636,162.92
  5. Step 5: Solve for x
    x = 9,923,636,162.92/126,971.47
  6. Step 6: Final answer
    x = 78,156.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.