Home / 142,664.49-213,998.56-67,791.94

Finding the Fourth Proportional to 142,664.49, 213,998.56 and 67,791.94

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Solution

The fourth proportional to 142,664.49, 213,998.56 and 67,791.94 is: 101,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,664.49 : 213,998.56 = 67,791.94 : x
  2. Step 2: Convert to fraction form
    142,664.49/213,998.56 = 67,791.94/x
  3. Step 3: Cross multiply
    142,664.49x = 213,998.56 × 67,791.94
  4. Step 4: Simplify right side
    142,664.49x = 14,507,376,835.13
  5. Step 5: Solve for x
    x = 14,507,376,835.13/142,664.49
  6. Step 6: Final answer
    x = 101,688.77

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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.