Home / 105,985.35-158,953.14-39,456.81

Finding the Fourth Proportional to 105,985.35, 158,953.14 and 39,456.81

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Solution

The fourth proportional to 105,985.35, 158,953.14 and 39,456.81 is: 59,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,985.35 : 158,953.14 = 39,456.81 : x
  2. Step 2: Convert to fraction form
    105,985.35/158,953.14 = 39,456.81/x
  3. Step 3: Cross multiply
    105,985.35x = 158,953.14 × 39,456.81
  4. Step 4: Simplify right side
    105,985.35x = 6,271,783,843.88
  5. Step 5: Solve for x
    x = 6,271,783,843.88/105,985.35
  6. Step 6: Final answer
    x = 59,175.95

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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.