Home / 143,080.54-197,460.10-79,419.40

Finding the Fourth Proportional to 143,080.54, 197,460.10 and 79,419.40

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Solution

The fourth proportional to 143,080.54, 197,460.10 and 79,419.40 is: 109,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,080.54 : 197,460.10 = 79,419.40 : x
  2. Step 2: Convert to fraction form
    143,080.54/197,460.10 = 79,419.40/x
  3. Step 3: Cross multiply
    143,080.54x = 197,460.10 × 79,419.40
  4. Step 4: Simplify right side
    143,080.54x = 15,682,162,665.94
  5. Step 5: Solve for x
    x = 15,682,162,665.94/143,080.54
  6. Step 6: Final answer
    x = 109,603.74

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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.