Home / 127,378.94-191,072.66-57,258.46

Finding the Fourth Proportional to 127,378.94, 191,072.66 and 57,258.46

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Solution

The fourth proportional to 127,378.94, 191,072.66 and 57,258.46 is: 85,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,378.94 : 191,072.66 = 57,258.46 : x
  2. Step 2: Convert to fraction form
    127,378.94/191,072.66 = 57,258.46/x
  3. Step 3: Cross multiply
    127,378.94x = 191,072.66 × 57,258.46
  4. Step 4: Simplify right side
    127,378.94x = 10,940,526,259.70
  5. Step 5: Solve for x
    x = 10,940,526,259.70/127,378.94
  6. Step 6: Final answer
    x = 85,889.60

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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.