Home / 120,621.04-166,457.46-66,911.02

Finding the Fourth Proportional to 120,621.04, 166,457.46 and 66,911.02

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Solution

The fourth proportional to 120,621.04, 166,457.46 and 66,911.02 is: 92,337.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.04 : 166,457.46 = 66,911.02 : x
  2. Step 2: Convert to fraction form
    120,621.04/166,457.46 = 66,911.02/x
  3. Step 3: Cross multiply
    120,621.04x = 166,457.46 × 66,911.02
  4. Step 4: Simplify right side
    120,621.04x = 11,137,838,435.21
  5. Step 5: Solve for x
    x = 11,137,838,435.21/120,621.04
  6. Step 6: Final answer
    x = 92,337.44

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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.