Home / 127,966.20-191,603.70-100,318.20

Finding the Fourth Proportional to 127,966.20, 191,603.70 and 100,318.20

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Solution

The fourth proportional to 127,966.20, 191,603.70 and 100,318.20 is: 150,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,966.20 : 191,603.70 = 100,318.20 : x
  2. Step 2: Convert to fraction form
    127,966.20/191,603.70 = 100,318.20/x
  3. Step 3: Cross multiply
    127,966.20x = 191,603.70 × 100,318.20
  4. Step 4: Simplify right side
    127,966.20x = 19,221,338,297.34
  5. Step 5: Solve for x
    x = 19,221,338,297.34/127,966.20
  6. Step 6: Final answer
    x = 150,206.37

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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.