Home / 109,983.20-164,942.40-43,401.20

Finding the Fourth Proportional to 109,983.20, 164,942.40 and 43,401.20

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Solution

The fourth proportional to 109,983.20, 164,942.40 and 43,401.20 is: 65,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,983.20 : 164,942.40 = 43,401.20 : x
  2. Step 2: Convert to fraction form
    109,983.20/164,942.40 = 43,401.20/x
  3. Step 3: Cross multiply
    109,983.20x = 164,942.40 × 43,401.20
  4. Step 4: Simplify right side
    109,983.20x = 7,158,698,090.88
  5. Step 5: Solve for x
    x = 7,158,698,090.88/109,983.20
  6. Step 6: Final answer
    x = 65,089.01

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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.