Home / 143,317.84-197,769.48-79,651.76

Finding the Fourth Proportional to 143,317.84, 197,769.48 and 79,651.76

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Solution

The fourth proportional to 143,317.84, 197,769.48 and 79,651.76 is: 109,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,317.84 : 197,769.48 = 79,651.76 : x
  2. Step 2: Convert to fraction form
    143,317.84/197,769.48 = 79,651.76/x
  3. Step 3: Cross multiply
    143,317.84x = 197,769.48 × 79,651.76
  4. Step 4: Simplify right side
    143,317.84x = 15,752,687,156.28
  5. Step 5: Solve for x
    x = 15,752,687,156.28/143,317.84
  6. Step 6: Final answer
    x = 109,914.35

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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.