Home / 127,315.19-190,993.45-43,080.53

Finding the Fourth Proportional to 127,315.19, 190,993.45 and 43,080.53

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Solution

The fourth proportional to 127,315.19, 190,993.45 and 43,080.53 is: 64,627.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,315.19 : 190,993.45 = 43,080.53 : x
  2. Step 2: Convert to fraction form
    127,315.19/190,993.45 = 43,080.53/x
  3. Step 3: Cross multiply
    127,315.19x = 190,993.45 × 43,080.53
  4. Step 4: Simplify right side
    127,315.19x = 8,228,098,837.13
  5. Step 5: Solve for x
    x = 8,228,098,837.13/127,315.19
  6. Step 6: Final answer
    x = 64,627.79

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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.