Home / 126,755.18-190,132.24-31,985.58

Finding the Fourth Proportional to 126,755.18, 190,132.24 and 31,985.58

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Solution

The fourth proportional to 126,755.18, 190,132.24 and 31,985.58 is: 47,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,755.18 : 190,132.24 = 31,985.58 : x
  2. Step 2: Convert to fraction form
    126,755.18/190,132.24 = 31,985.58/x
  3. Step 3: Cross multiply
    126,755.18x = 190,132.24 × 31,985.58
  4. Step 4: Simplify right side
    126,755.18x = 6,081,489,973.10
  5. Step 5: Solve for x
    x = 6,081,489,973.10/126,755.18
  6. Step 6: Final answer
    x = 47,978.24

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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.