Home / 120,835.04-166,798.89-80,534.12

Finding the Fourth Proportional to 120,835.04, 166,798.89 and 80,534.12

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Solution

The fourth proportional to 120,835.04, 166,798.89 and 80,534.12 is: 111,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.04 : 166,798.89 = 80,534.12 : x
  2. Step 2: Convert to fraction form
    120,835.04/166,798.89 = 80,534.12/x
  3. Step 3: Cross multiply
    120,835.04x = 166,798.89 × 80,534.12
  4. Step 4: Simplify right side
    120,835.04x = 13,433,000,989.13
  5. Step 5: Solve for x
    x = 13,433,000,989.13/120,835.04
  6. Step 6: Final answer
    x = 111,168.10

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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.