Home / 205,113.62-307,706.54-70,145.96

Finding the Fourth Proportional to 205,113.62, 307,706.54 and 70,145.96

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Solution

The fourth proportional to 205,113.62, 307,706.54 and 70,145.96 is: 105,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,113.62 : 307,706.54 = 70,145.96 : x
  2. Step 2: Convert to fraction form
    205,113.62/307,706.54 = 70,145.96/x
  3. Step 3: Cross multiply
    205,113.62x = 307,706.54 × 70,145.96
  4. Step 4: Simplify right side
    205,113.62x = 21,584,368,757.32
  5. Step 5: Solve for x
    x = 21,584,368,757.32/205,113.62
  6. Step 6: Final answer
    x = 105,231.28

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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.