Home / 143,223.24-214,507.80-68,396.04

Finding the Fourth Proportional to 143,223.24, 214,507.80 and 68,396.04

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Solution

The fourth proportional to 143,223.24, 214,507.80 and 68,396.04 is: 102,437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,223.24 : 214,507.80 = 68,396.04 : x
  2. Step 2: Convert to fraction form
    143,223.24/214,507.80 = 68,396.04/x
  3. Step 3: Cross multiply
    143,223.24x = 214,507.80 × 68,396.04
  4. Step 4: Simplify right side
    143,223.24x = 14,671,484,069.11
  5. Step 5: Solve for x
    x = 14,671,484,069.11/143,223.24
  6. Step 6: Final answer
    x = 102,437.87

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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.