Home / 142,173.66-213,090.84-66,169.92

Finding the Fourth Proportional to 142,173.66, 213,090.84 and 66,169.92

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Solution

The fourth proportional to 142,173.66, 213,090.84 and 66,169.92 is: 99,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,173.66 : 213,090.84 = 66,169.92 : x
  2. Step 2: Convert to fraction form
    142,173.66/213,090.84 = 66,169.92/x
  3. Step 3: Cross multiply
    142,173.66x = 213,090.84 × 66,169.92
  4. Step 4: Simplify right side
    142,173.66x = 14,100,203,835.53
  5. Step 5: Solve for x
    x = 14,100,203,835.53/142,173.66
  6. Step 6: Final answer
    x = 99,175.92

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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.