Home / 142,322.40-196,406.37-77,793.48

Finding the Fourth Proportional to 142,322.40, 196,406.37 and 77,793.48

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Solution

The fourth proportional to 142,322.40, 196,406.37 and 77,793.48 is: 107,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,322.40 : 196,406.37 = 77,793.48 : x
  2. Step 2: Convert to fraction form
    142,322.40/196,406.37 = 77,793.48/x
  3. Step 3: Cross multiply
    142,322.40x = 196,406.37 × 77,793.48
  4. Step 4: Simplify right side
    142,322.40x = 15,279,135,016.47
  5. Step 5: Solve for x
    x = 15,279,135,016.47/142,322.40
  6. Step 6: Final answer
    x = 107,355.80

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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.