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Finding the Fourth Proportional to 107,209.88, 147,852.79 and 66,927.36

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Solution

The fourth proportional to 107,209.88, 147,852.79 and 66,927.36 is: 92,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,209.88 : 147,852.79 = 66,927.36 : x
  2. Step 2: Convert to fraction form
    107,209.88/147,852.79 = 66,927.36/x
  3. Step 3: Cross multiply
    107,209.88x = 147,852.79 × 66,927.36
  4. Step 4: Simplify right side
    107,209.88x = 9,895,396,736.02
  5. Step 5: Solve for x
    x = 9,895,396,736.02/107,209.88
  6. Step 6: Final answer
    x = 92,299.30

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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.