Home / 126,987.71-190,433.25-41,578.67

Finding the Fourth Proportional to 126,987.71, 190,433.25 and 41,578.67

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Solution

The fourth proportional to 126,987.71, 190,433.25 and 41,578.67 is: 62,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,987.71 : 190,433.25 = 41,578.67 : x
  2. Step 2: Convert to fraction form
    126,987.71/190,433.25 = 41,578.67/x
  3. Step 3: Cross multiply
    126,987.71x = 190,433.25 × 41,578.67
  4. Step 4: Simplify right side
    126,987.71x = 7,917,960,306.61
  5. Step 5: Solve for x
    x = 7,917,960,306.61/126,987.71
  6. Step 6: Final answer
    x = 62,352.18

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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.