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Finding the Fourth Proportional to 100,092.21, 138,123.14 and 59,828.18

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Solution

The fourth proportional to 100,092.21, 138,123.14 and 59,828.18 is: 82,560.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,092.21 : 138,123.14 = 59,828.18 : x
  2. Step 2: Convert to fraction form
    100,092.21/138,123.14 = 59,828.18/x
  3. Step 3: Cross multiply
    100,092.21x = 138,123.14 × 59,828.18
  4. Step 4: Simplify right side
    100,092.21x = 8,263,655,092.33
  5. Step 5: Solve for x
    x = 8,263,655,092.33/100,092.21
  6. Step 6: Final answer
    x = 82,560.42

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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.