Home / 120,664.70-180,997.05-102,002.30

Finding the Fourth Proportional to 120,664.70, 180,997.05 and 102,002.30

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Solution

The fourth proportional to 120,664.70, 180,997.05 and 102,002.30 is: 153,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.70 : 180,997.05 = 102,002.30 : x
  2. Step 2: Convert to fraction form
    120,664.70/180,997.05 = 102,002.30/x
  3. Step 3: Cross multiply
    120,664.70x = 180,997.05 × 102,002.30
  4. Step 4: Simplify right side
    120,664.70x = 18,462,115,393.22
  5. Step 5: Solve for x
    x = 18,462,115,393.22/120,664.70
  6. Step 6: Final answer
    x = 153,003.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.