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Finding the Fourth Proportional to 82,103.40, 123,203.70 and 59,860.80

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Solution

The fourth proportional to 82,103.40, 123,203.70 and 59,860.80 is: 89,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,103.40 : 123,203.70 = 59,860.80 : x
  2. Step 2: Convert to fraction form
    82,103.40/123,203.70 = 59,860.80/x
  3. Step 3: Cross multiply
    82,103.40x = 123,203.70 × 59,860.80
  4. Step 4: Simplify right side
    82,103.40x = 7,375,072,044.96
  5. Step 5: Solve for x
    x = 7,375,072,044.96/82,103.40
  6. Step 6: Final answer
    x = 89,826.63

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1.5x scale

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.