Home / 143,150.40-197,552.52-79,489.26

Finding the Fourth Proportional to 143,150.40, 197,552.52 and 79,489.26

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Solution

The fourth proportional to 143,150.40, 197,552.52 and 79,489.26 is: 109,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,150.40 : 197,552.52 = 79,489.26 : x
  2. Step 2: Convert to fraction form
    143,150.40/197,552.52 = 79,489.26/x
  3. Step 3: Cross multiply
    143,150.40x = 197,552.52 × 79,489.26
  4. Step 4: Simplify right side
    143,150.40x = 15,703,303,625.94
  5. Step 5: Solve for x
    x = 15,703,303,625.94/143,150.40
  6. Step 6: Final answer
    x = 109,697.94

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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.