Home / 143,302.28-214,625.56-68,475

Finding the Fourth Proportional to 143,302.28, 214,625.56 and 68,475

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Solution

The fourth proportional to 143,302.28, 214,625.56 and 68,475 is: 102,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,302.28 : 214,625.56 = 68,475 : x
  2. Step 2: Convert to fraction form
    143,302.28/214,625.56 = 68,475/x
  3. Step 3: Cross multiply
    143,302.28x = 214,625.56 × 68,475
  4. Step 4: Simplify right side
    143,302.28x = 14,696,485,221
  5. Step 5: Solve for x
    x = 14,696,485,221/143,302.28
  6. Step 6: Final answer
    x = 102,555.84

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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.