Home / 143,429.22-197,917.17-79,756.74

Finding the Fourth Proportional to 143,429.22, 197,917.17 and 79,756.74

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Solution

The fourth proportional to 143,429.22, 197,917.17 and 79,756.74 is: 110,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,429.22 : 197,917.17 = 79,756.74 : x
  2. Step 2: Convert to fraction form
    143,429.22/197,917.17 = 79,756.74/x
  3. Step 3: Cross multiply
    143,429.22x = 197,917.17 × 79,756.74
  4. Step 4: Simplify right side
    143,429.22x = 15,785,228,269.23
  5. Step 5: Solve for x
    x = 15,785,228,269.23/143,429.22
  6. Step 6: Final answer
    x = 110,055.87

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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.