Home / 166,856.63-230,267.90-91,405.13

Finding the Fourth Proportional to 166,856.63, 230,267.90 and 91,405.13

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Solution

The fourth proportional to 166,856.63, 230,267.90 and 91,405.13 is: 126,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,856.63 : 230,267.90 = 91,405.13 : x
  2. Step 2: Convert to fraction form
    166,856.63/230,267.90 = 91,405.13/x
  3. Step 3: Cross multiply
    166,856.63x = 230,267.90 × 91,405.13
  4. Step 4: Simplify right side
    166,856.63x = 21,047,667,334.33
  5. Step 5: Solve for x
    x = 21,047,667,334.33/166,856.63
  6. Step 6: Final answer
    x = 126,142.23

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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.