Home / 127,465.62-191,198.37-38,718.78

Finding the Fourth Proportional to 127,465.62, 191,198.37 and 38,718.78

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Solution

The fourth proportional to 127,465.62, 191,198.37 and 38,718.78 is: 58,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,465.62 : 191,198.37 = 38,718.78 : x
  2. Step 2: Convert to fraction form
    127,465.62/191,198.37 = 38,718.78/x
  3. Step 3: Cross multiply
    127,465.62x = 191,198.37 × 38,718.78
  4. Step 4: Simplify right side
    127,465.62x = 7,402,967,624.39
  5. Step 5: Solve for x
    x = 7,402,967,624.39/127,465.62
  6. Step 6: Final answer
    x = 58,078.15

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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.