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Finding the Fourth Proportional to 186,009.48, 278,850.06 and 67,660.11

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Solution

The fourth proportional to 186,009.48, 278,850.06 and 67,660.11 is: 101,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,009.48 : 278,850.06 = 67,660.11 : x
  2. Step 2: Convert to fraction form
    186,009.48/278,850.06 = 67,660.11/x
  3. Step 3: Cross multiply
    186,009.48x = 278,850.06 × 67,660.11
  4. Step 4: Simplify right side
    186,009.48x = 18,867,025,733.11
  5. Step 5: Solve for x
    x = 18,867,025,733.11/186,009.48
  6. Step 6: Final answer
    x = 101,430.45

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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.