Home / 143,095.20-197,461.44-79,429.20

Finding the Fourth Proportional to 143,095.20, 197,461.44 and 79,429.20

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Solution

The fourth proportional to 143,095.20, 197,461.44 and 79,429.20 is: 109,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,095.20 : 197,461.44 = 79,429.20 : x
  2. Step 2: Convert to fraction form
    143,095.20/197,461.44 = 79,429.20/x
  3. Step 3: Cross multiply
    143,095.20x = 197,461.44 × 79,429.20
  4. Step 4: Simplify right side
    143,095.20x = 15,684,204,210.05
  5. Step 5: Solve for x
    x = 15,684,204,210.05/143,095.20
  6. Step 6: Final answer
    x = 109,606.78

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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.