Home / 185,511.60-278,340.30-73,172.70

Finding the Fourth Proportional to 185,511.60, 278,340.30 and 73,172.70

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Solution

The fourth proportional to 185,511.60, 278,340.30 and 73,172.70 is: 109,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,511.60 : 278,340.30 = 73,172.70 : x
  2. Step 2: Convert to fraction form
    185,511.60/278,340.30 = 73,172.70/x
  3. Step 3: Cross multiply
    185,511.60x = 278,340.30 × 73,172.70
  4. Step 4: Simplify right side
    185,511.60x = 20,366,911,269.81
  5. Step 5: Solve for x
    x = 20,366,911,269.81/185,511.60
  6. Step 6: Final answer
    x = 109,787.80

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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.