Home / 143,035.68-197,403.84-79,373.92

Finding the Fourth Proportional to 143,035.68, 197,403.84 and 79,373.92

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Solution

The fourth proportional to 143,035.68, 197,403.84 and 79,373.92 is: 109,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.68 : 197,403.84 = 79,373.92 : x
  2. Step 2: Convert to fraction form
    143,035.68/197,403.84 = 79,373.92/x
  3. Step 3: Cross multiply
    143,035.68x = 197,403.84 × 79,373.92
  4. Step 4: Simplify right side
    143,035.68x = 15,668,716,603.85
  5. Step 5: Solve for x
    x = 15,668,716,603.85/143,035.68
  6. Step 6: Final answer
    x = 109,544.11

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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.