Home / 142,729.56-214,099.20-67,811.04

Finding the Fourth Proportional to 142,729.56, 214,099.20 and 67,811.04

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Solution

The fourth proportional to 142,729.56, 214,099.20 and 67,811.04 is: 101,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,729.56 : 214,099.20 = 67,811.04 : x
  2. Step 2: Convert to fraction form
    142,729.56/214,099.20 = 67,811.04/x
  3. Step 3: Cross multiply
    142,729.56x = 214,099.20 × 67,811.04
  4. Step 4: Simplify right side
    142,729.56x = 14,518,289,415.17
  5. Step 5: Solve for x
    x = 14,518,289,415.17/142,729.56
  6. Step 6: Final answer
    x = 101,718.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.