Home / 142,996.23-197,334.81-79,334.48

Finding the Fourth Proportional to 142,996.23, 197,334.81 and 79,334.48

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Solution

The fourth proportional to 142,996.23, 197,334.81 and 79,334.48 is: 109,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,996.23 : 197,334.81 = 79,334.48 : x
  2. Step 2: Convert to fraction form
    142,996.23/197,334.81 = 79,334.48/x
  3. Step 3: Cross multiply
    142,996.23x = 197,334.81 × 79,334.48
  4. Step 4: Simplify right side
    142,996.23x = 15,655,455,030.59
  5. Step 5: Solve for x
    x = 15,655,455,030.59/142,996.23
  6. Step 6: Final answer
    x = 109,481.59

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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.