Home / 127,134.20-190,787.70-70,974.20

Finding the Fourth Proportional to 127,134.20, 190,787.70 and 70,974.20

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Solution

The fourth proportional to 127,134.20, 190,787.70 and 70,974.20 is: 106,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,134.20 : 190,787.70 = 70,974.20 : x
  2. Step 2: Convert to fraction form
    127,134.20/190,787.70 = 70,974.20/x
  3. Step 3: Cross multiply
    127,134.20x = 190,787.70 × 70,974.20
  4. Step 4: Simplify right side
    127,134.20x = 13,541,004,377.34
  5. Step 5: Solve for x
    x = 13,541,004,377.34/127,134.20
  6. Step 6: Final answer
    x = 106,509.53

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1.5x scale

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.