Home / 127,141.30-190,680-52,282.36

Finding the Fourth Proportional to 127,141.30, 190,680 and 52,282.36

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Solution

The fourth proportional to 127,141.30, 190,680 and 52,282.36 is: 78,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,141.30 : 190,680 = 52,282.36 : x
  2. Step 2: Convert to fraction form
    127,141.30/190,680 = 52,282.36/x
  3. Step 3: Cross multiply
    127,141.30x = 190,680 × 52,282.36
  4. Step 4: Simplify right side
    127,141.30x = 9,969,200,404.80
  5. Step 5: Solve for x
    x = 9,969,200,404.80/127,141.30
  6. Step 6: Final answer
    x = 78,410.40

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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.