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Finding the Fourth Proportional to 100,243.85, 138,333.06 and 59,936.67

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Solution

The fourth proportional to 100,243.85, 138,333.06 and 59,936.67 is: 82,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,243.85 : 138,333.06 = 59,936.67 : x
  2. Step 2: Convert to fraction form
    100,243.85/138,333.06 = 59,936.67/x
  3. Step 3: Cross multiply
    100,243.85x = 138,333.06 × 59,936.67
  4. Step 4: Simplify right side
    100,243.85x = 8,291,222,967.31
  5. Step 5: Solve for x
    x = 8,291,222,967.31/100,243.85
  6. Step 6: Final answer
    x = 82,710.54

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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.