Home / 143,288.46-197,742.87-79,628.94

Finding the Fourth Proportional to 143,288.46, 197,742.87 and 79,628.94

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Solution

The fourth proportional to 143,288.46, 197,742.87 and 79,628.94 is: 109,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,288.46 : 197,742.87 = 79,628.94 : x
  2. Step 2: Convert to fraction form
    143,288.46/197,742.87 = 79,628.94/x
  3. Step 3: Cross multiply
    143,288.46x = 197,742.87 × 79,628.94
  4. Step 4: Simplify right side
    143,288.46x = 15,746,055,130.66
  5. Step 5: Solve for x
    x = 15,746,055,130.66/143,288.46
  6. Step 6: Final answer
    x = 109,890.60

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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.