Home / 120,433.15-166,197.65-65,985.36

Finding the Fourth Proportional to 120,433.15, 166,197.65 and 65,985.36

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Solution

The fourth proportional to 120,433.15, 166,197.65 and 65,985.36 is: 91,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,433.15 : 166,197.65 = 65,985.36 : x
  2. Step 2: Convert to fraction form
    120,433.15/166,197.65 = 65,985.36/x
  3. Step 3: Cross multiply
    120,433.15x = 166,197.65 × 65,985.36
  4. Step 4: Simplify right side
    120,433.15x = 10,966,611,766.40
  5. Step 5: Solve for x
    x = 10,966,611,766.40/120,433.15
  6. Step 6: Final answer
    x = 91,059.74

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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.