Home / 127,925.20-191,542.20-100,277.20

Finding the Fourth Proportional to 127,925.20, 191,542.20 and 100,277.20

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Solution

The fourth proportional to 127,925.20, 191,542.20 and 100,277.20 is: 150,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,925.20 : 191,542.20 = 100,277.20 : x
  2. Step 2: Convert to fraction form
    127,925.20/191,542.20 = 100,277.20/x
  3. Step 3: Cross multiply
    127,925.20x = 191,542.20 × 100,277.20
  4. Step 4: Simplify right side
    127,925.20x = 19,207,315,497.84
  5. Step 5: Solve for x
    x = 19,207,315,497.84/127,925.20
  6. Step 6: Final answer
    x = 150,144.89

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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.