Home / 143,035.04-197,411.82-79,393.28

Finding the Fourth Proportional to 143,035.04, 197,411.82 and 79,393.28

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Solution

The fourth proportional to 143,035.04, 197,411.82 and 79,393.28 is: 109,575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.04 : 197,411.82 = 79,393.28 : x
  2. Step 2: Convert to fraction form
    143,035.04/197,411.82 = 79,393.28/x
  3. Step 3: Cross multiply
    143,035.04x = 197,411.82 × 79,393.28
  4. Step 4: Simplify right side
    143,035.04x = 15,673,171,900.57
  5. Step 5: Solve for x
    x = 15,673,171,900.57/143,035.04
  6. Step 6: Final answer
    x = 109,575.75

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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.