Home / 143,208.60-214,521.30-73,127.40

Finding the Fourth Proportional to 143,208.60, 214,521.30 and 73,127.40

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Solution

The fourth proportional to 143,208.60, 214,521.30 and 73,127.40 is: 109,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,208.60 : 214,521.30 = 73,127.40 : x
  2. Step 2: Convert to fraction form
    143,208.60/214,521.30 = 73,127.40/x
  3. Step 3: Cross multiply
    143,208.60x = 214,521.30 × 73,127.40
  4. Step 4: Simplify right side
    143,208.60x = 15,687,384,913.62
  5. Step 5: Solve for x
    x = 15,687,384,913.62/143,208.60
  6. Step 6: Final answer
    x = 109,542.20

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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.