Home / 120,989.42-166,955.90-67,271.16

Finding the Fourth Proportional to 120,989.42, 166,955.90 and 67,271.16

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Solution

The fourth proportional to 120,989.42, 166,955.90 and 67,271.16 is: 92,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,989.42 : 166,955.90 = 67,271.16 : x
  2. Step 2: Convert to fraction form
    120,989.42/166,955.90 = 67,271.16/x
  3. Step 3: Cross multiply
    120,989.42x = 166,955.90 × 67,271.16
  4. Step 4: Simplify right side
    120,989.42x = 11,231,316,725.49
  5. Step 5: Solve for x
    x = 11,231,316,725.49/120,989.42
  6. Step 6: Final answer
    x = 92,828.92

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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.