Home / 104,886.12-157,197.78-82,611.50

Finding the Fourth Proportional to 104,886.12, 157,197.78 and 82,611.50

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Solution

The fourth proportional to 104,886.12, 157,197.78 and 82,611.50 is: 123,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,886.12 : 157,197.78 = 82,611.50 : x
  2. Step 2: Convert to fraction form
    104,886.12/157,197.78 = 82,611.50/x
  3. Step 3: Cross multiply
    104,886.12x = 157,197.78 × 82,611.50
  4. Step 4: Simplify right side
    104,886.12x = 12,986,344,402.47
  5. Step 5: Solve for x
    x = 12,986,344,402.47/104,886.12
  6. Step 6: Final answer
    x = 123,813.76

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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.