Home / 140,989.46-194,565.50-76,458.67

Finding the Fourth Proportional to 140,989.46, 194,565.50 and 76,458.67

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Solution

The fourth proportional to 140,989.46, 194,565.50 and 76,458.67 is: 105,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,989.46 : 194,565.50 = 76,458.67 : x
  2. Step 2: Convert to fraction form
    140,989.46/194,565.50 = 76,458.67/x
  3. Step 3: Cross multiply
    140,989.46x = 194,565.50 × 76,458.67
  4. Step 4: Simplify right side
    140,989.46x = 14,876,219,357.89
  5. Step 5: Solve for x
    x = 14,876,219,357.89/140,989.46
  6. Step 6: Final answer
    x = 105,512.99

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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.