Home / 143,273.76-197,719.76-79,610.40

Finding the Fourth Proportional to 143,273.76, 197,719.76 and 79,610.40

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Solution

The fourth proportional to 143,273.76, 197,719.76 and 79,610.40 is: 109,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,273.76 : 197,719.76 = 79,610.40 : x
  2. Step 2: Convert to fraction form
    143,273.76/197,719.76 = 79,610.40/x
  3. Step 3: Cross multiply
    143,273.76x = 197,719.76 × 79,610.40
  4. Step 4: Simplify right side
    143,273.76x = 15,740,549,181.50
  5. Step 5: Solve for x
    x = 15,740,549,181.50/143,273.76
  6. Step 6: Final answer
    x = 109,863.45

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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.