Home / 142,170.66-213,086.34-66,166.92

Finding the Fourth Proportional to 142,170.66, 213,086.34 and 66,166.92

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Solution

The fourth proportional to 142,170.66, 213,086.34 and 66,166.92 is: 99,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,170.66 : 213,086.34 = 66,166.92 : x
  2. Step 2: Convert to fraction form
    142,170.66/213,086.34 = 66,166.92/x
  3. Step 3: Cross multiply
    142,170.66x = 213,086.34 × 66,166.92
  4. Step 4: Simplify right side
    142,170.66x = 14,099,266,811.87
  5. Step 5: Solve for x
    x = 14,099,266,811.87/142,170.66
  6. Step 6: Final answer
    x = 99,171.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.