Home / 142,972.52-197,172.92-89,262.48

Finding the Fourth Proportional to 142,972.52, 197,172.92 and 89,262.48

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Solution

The fourth proportional to 142,972.52, 197,172.92 and 89,262.48 is: 123,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,972.52 : 197,172.92 = 89,262.48 : x
  2. Step 2: Convert to fraction form
    142,972.52/197,172.92 = 89,262.48/x
  3. Step 3: Cross multiply
    142,972.52x = 197,172.92 × 89,262.48
  4. Step 4: Simplify right side
    142,972.52x = 17,600,143,828.04
  5. Step 5: Solve for x
    x = 17,600,143,828.04/142,972.52
  6. Step 6: Final answer
    x = 123,101.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.