Home / 186,724.21-257,678.20-106,151.76

Finding the Fourth Proportional to 186,724.21, 257,678.20 and 106,151.76

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Solution

The fourth proportional to 186,724.21, 257,678.20 and 106,151.76 is: 146,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,724.21 : 257,678.20 = 106,151.76 : x
  2. Step 2: Convert to fraction form
    186,724.21/257,678.20 = 106,151.76/x
  3. Step 3: Cross multiply
    186,724.21x = 257,678.20 × 106,151.76
  4. Step 4: Simplify right side
    186,724.21x = 27,352,992,624.48
  5. Step 5: Solve for x
    x = 27,352,992,624.48/186,724.21
  6. Step 6: Final answer
    x = 146,488.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.