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Finding the Fourth Proportional to 100,265.28, 138,362 and 59,955.26

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Solution

The fourth proportional to 100,265.28, 138,362 and 59,955.26 is: 82,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,265.28 : 138,362 = 59,955.26 : x
  2. Step 2: Convert to fraction form
    100,265.28/138,362 = 59,955.26/x
  3. Step 3: Cross multiply
    100,265.28x = 138,362 × 59,955.26
  4. Step 4: Simplify right side
    100,265.28x = 8,295,529,684.12
  5. Step 5: Solve for x
    x = 8,295,529,684.12/100,265.28
  6. Step 6: Final answer
    x = 82,735.82

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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.