Home / 102,285.96-141,154.26-56,964.48

Finding the Fourth Proportional to 102,285.96, 141,154.26 and 56,964.48

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Solution

The fourth proportional to 102,285.96, 141,154.26 and 56,964.48 is: 78,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,285.96 : 141,154.26 = 56,964.48 : x
  2. Step 2: Convert to fraction form
    102,285.96/141,154.26 = 56,964.48/x
  3. Step 3: Cross multiply
    102,285.96x = 141,154.26 × 56,964.48
  4. Step 4: Simplify right side
    102,285.96x = 8,040,779,020.68
  5. Step 5: Solve for x
    x = 8,040,779,020.68/102,285.96
  6. Step 6: Final answer
    x = 78,610.78

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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.