Home / 127,040.46-190,528.80-52,181.28

Finding the Fourth Proportional to 127,040.46, 190,528.80 and 52,181.28

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Solution

The fourth proportional to 127,040.46, 190,528.80 and 52,181.28 is: 78,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,040.46 : 190,528.80 = 52,181.28 : x
  2. Step 2: Convert to fraction form
    127,040.46/190,528.80 = 52,181.28/x
  3. Step 3: Cross multiply
    127,040.46x = 190,528.80 × 52,181.28
  4. Step 4: Simplify right side
    127,040.46x = 9,942,036,660.86
  5. Step 5: Solve for x
    x = 9,942,036,660.86/127,040.46
  6. Step 6: Final answer
    x = 78,258.82

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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.