Home / 120,421.46-166,181.63-65,973.87

Finding the Fourth Proportional to 120,421.46, 166,181.63 and 65,973.87

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Solution

The fourth proportional to 120,421.46, 166,181.63 and 65,973.87 is: 91,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,421.46 : 166,181.63 = 65,973.87 : x
  2. Step 2: Convert to fraction form
    120,421.46/166,181.63 = 65,973.87/x
  3. Step 3: Cross multiply
    120,421.46x = 166,181.63 × 65,973.87
  4. Step 4: Simplify right side
    120,421.46x = 10,963,645,480.79
  5. Step 5: Solve for x
    x = 10,963,645,480.79/120,421.46
  6. Step 6: Final answer
    x = 91,043.95

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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.