Home / 143,242.53-214,951.28-73,127.31

Finding the Fourth Proportional to 143,242.53, 214,951.28 and 73,127.31

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Solution

The fourth proportional to 143,242.53, 214,951.28 and 73,127.31 is: 109,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,242.53 : 214,951.28 = 73,127.31 : x
  2. Step 2: Convert to fraction form
    143,242.53/214,951.28 = 73,127.31/x
  3. Step 3: Cross multiply
    143,242.53x = 214,951.28 × 73,127.31
  4. Step 4: Simplify right side
    143,242.53x = 15,718,808,521.82
  5. Step 5: Solve for x
    x = 15,718,808,521.82/143,242.53
  6. Step 6: Final answer
    x = 109,735.62

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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.