Home / 104,340.39-156,513.29-28,439.56

Finding the Fourth Proportional to 104,340.39, 156,513.29 and 28,439.56

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Solution

The fourth proportional to 104,340.39, 156,513.29 and 28,439.56 is: 42,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,340.39 : 156,513.29 = 28,439.56 : x
  2. Step 2: Convert to fraction form
    104,340.39/156,513.29 = 28,439.56/x
  3. Step 3: Cross multiply
    104,340.39x = 156,513.29 × 28,439.56
  4. Step 4: Simplify right side
    104,340.39x = 4,451,168,674.92
  5. Step 5: Solve for x
    x = 4,451,168,674.92/104,340.39
  6. Step 6: Final answer
    x = 42,660.07

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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.