Home / 120,664.20-180,996.30-102,001.80

Finding the Fourth Proportional to 120,664.20, 180,996.30 and 102,001.80

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Solution

The fourth proportional to 120,664.20, 180,996.30 and 102,001.80 is: 153,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.20 : 180,996.30 = 102,001.80 : x
  2. Step 2: Convert to fraction form
    120,664.20/180,996.30 = 102,001.80/x
  3. Step 3: Cross multiply
    120,664.20x = 180,996.30 × 102,001.80
  4. Step 4: Simplify right side
    120,664.20x = 18,461,948,393.34
  5. Step 5: Solve for x
    x = 18,461,948,393.34/120,664.20
  6. Step 6: Final answer
    x = 153,002.70

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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.