Home / 102,932.87-142,047.15-57,610.67

Finding the Fourth Proportional to 102,932.87, 142,047.15 and 57,610.67

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Solution

The fourth proportional to 102,932.87, 142,047.15 and 57,610.67 is: 79,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,932.87 : 142,047.15 = 57,610.67 : x
  2. Step 2: Convert to fraction form
    102,932.87/142,047.15 = 57,610.67/x
  3. Step 3: Cross multiply
    102,932.87x = 142,047.15 × 57,610.67
  4. Step 4: Simplify right side
    102,932.87x = 8,183,431,483.09
  5. Step 5: Solve for x
    x = 8,183,431,483.09/102,932.87
  6. Step 6: Final answer
    x = 79,502.61

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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.