Home / 156,815.80-234,994.05-77,772.16

Finding the Fourth Proportional to 156,815.80, 234,994.05 and 77,772.16

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Solution

The fourth proportional to 156,815.80, 234,994.05 and 77,772.16 is: 116,544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.80 : 234,994.05 = 77,772.16 : x
  2. Step 2: Convert to fraction form
    156,815.80/234,994.05 = 77,772.16/x
  3. Step 3: Cross multiply
    156,815.80x = 234,994.05 × 77,772.16
  4. Step 4: Simplify right side
    156,815.80x = 18,275,993,680.68
  5. Step 5: Solve for x
    x = 18,275,993,680.68/156,815.80
  6. Step 6: Final answer
    x = 116,544.34

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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.