Home / 120,974.98-166,963.64-87,095.60

Finding the Fourth Proportional to 120,974.98, 166,963.64 and 87,095.60

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Solution

The fourth proportional to 120,974.98, 166,963.64 and 87,095.60 is: 120,205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,974.98 : 166,963.64 = 87,095.60 : x
  2. Step 2: Convert to fraction form
    120,974.98/166,963.64 = 87,095.60/x
  3. Step 3: Cross multiply
    120,974.98x = 166,963.64 × 87,095.60
  4. Step 4: Simplify right side
    120,974.98x = 14,541,798,385.92
  5. Step 5: Solve for x
    x = 14,541,798,385.92/120,974.98
  6. Step 6: Final answer
    x = 120,205.01

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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.