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Finding the Fourth Proportional to 166,759.12, 230,130.12 and 91,314.64

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Solution

The fourth proportional to 166,759.12, 230,130.12 and 91,314.64 is: 126,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,759.12 : 230,130.12 = 91,314.64 : x
  2. Step 2: Convert to fraction form
    166,759.12/230,130.12 = 91,314.64/x
  3. Step 3: Cross multiply
    166,759.12x = 230,130.12 × 91,314.64
  4. Step 4: Simplify right side
    166,759.12x = 21,014,249,060.96
  5. Step 5: Solve for x
    x = 21,014,249,060.96/166,759.12
  6. Step 6: Final answer
    x = 126,015.59

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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.