Home / 127,954.20-191,585.70-100,306.20

Finding the Fourth Proportional to 127,954.20, 191,585.70 and 100,306.20

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Solution

The fourth proportional to 127,954.20, 191,585.70 and 100,306.20 is: 150,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,954.20 : 191,585.70 = 100,306.20 : x
  2. Step 2: Convert to fraction form
    127,954.20/191,585.70 = 100,306.20/x
  3. Step 3: Cross multiply
    127,954.20x = 191,585.70 × 100,306.20
  4. Step 4: Simplify right side
    127,954.20x = 19,217,233,541.34
  5. Step 5: Solve for x
    x = 19,217,233,541.34/127,954.20
  6. Step 6: Final answer
    x = 150,188.38

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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.