Home / 143,406.03-197,900.49-79,742.46

Finding the Fourth Proportional to 143,406.03, 197,900.49 and 79,742.46

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Solution

The fourth proportional to 143,406.03, 197,900.49 and 79,742.46 is: 110,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,406.03 : 197,900.49 = 79,742.46 : x
  2. Step 2: Convert to fraction form
    143,406.03/197,900.49 = 79,742.46/x
  3. Step 3: Cross multiply
    143,406.03x = 197,900.49 × 79,742.46
  4. Step 4: Simplify right side
    143,406.03x = 15,781,071,907.81
  5. Step 5: Solve for x
    x = 15,781,071,907.81/143,406.03
  6. Step 6: Final answer
    x = 110,044.69

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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.