Home / 126,988.86-190,489.37-104,761.02

Finding the Fourth Proportional to 126,988.86, 190,489.37 and 104,761.02

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Solution

The fourth proportional to 126,988.86, 190,489.37 and 104,761.02 is: 157,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,988.86 : 190,489.37 = 104,761.02 : x
  2. Step 2: Convert to fraction form
    126,988.86/190,489.37 = 104,761.02/x
  3. Step 3: Cross multiply
    126,988.86x = 190,489.37 × 104,761.02
  4. Step 4: Simplify right side
    126,988.86x = 19,955,860,176.55
  5. Step 5: Solve for x
    x = 19,955,860,176.55/126,988.86
  6. Step 6: Final answer
    x = 157,146.54

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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.