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Finding the Fourth Proportional to 100,243.80, 138,240.84 and 59,950.92

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Solution

The fourth proportional to 100,243.80, 138,240.84 and 59,950.92 is: 82,675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,243.80 : 138,240.84 = 59,950.92 : x
  2. Step 2: Convert to fraction form
    100,243.80/138,240.84 = 59,950.92/x
  3. Step 3: Cross multiply
    100,243.80x = 138,240.84 × 59,950.92
  4. Step 4: Simplify right side
    100,243.80x = 8,287,665,539.57
  5. Step 5: Solve for x
    x = 8,287,665,539.57/100,243.80
  6. Step 6: Final answer
    x = 82,675.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.