Home / 73,815.80-110,723.70-68,113.40

Finding the Fourth Proportional to 73,815.80, 110,723.70 and 68,113.40

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Solution

The fourth proportional to 73,815.80, 110,723.70 and 68,113.40 is: 102,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.80 : 110,723.70 = 68,113.40 : x
  2. Step 2: Convert to fraction form
    73,815.80/110,723.70 = 68,113.40/x
  3. Step 3: Cross multiply
    73,815.80x = 110,723.70 × 68,113.40
  4. Step 4: Simplify right side
    73,815.80x = 7,541,767,667.58
  5. Step 5: Solve for x
    x = 7,541,767,667.58/73,815.80
  6. Step 6: Final answer
    x = 102,170.10

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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.