Home / 185,639.30-278,490.54-73,260.71

Finding the Fourth Proportional to 185,639.30, 278,490.54 and 73,260.71

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Solution

The fourth proportional to 185,639.30, 278,490.54 and 73,260.71 is: 109,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,639.30 : 278,490.54 = 73,260.71 : x
  2. Step 2: Convert to fraction form
    185,639.30/278,490.54 = 73,260.71/x
  3. Step 3: Cross multiply
    185,639.30x = 278,490.54 × 73,260.71
  4. Step 4: Simplify right side
    185,639.30x = 20,402,414,688.68
  5. Step 5: Solve for x
    x = 20,402,414,688.68/185,639.30
  6. Step 6: Final answer
    x = 109,903.53

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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.