Home / 156,928.53-235,451.12-72,729.03

Finding the Fourth Proportional to 156,928.53, 235,451.12 and 72,729.03

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Solution

The fourth proportional to 156,928.53, 235,451.12 and 72,729.03 is: 109,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928.53 : 235,451.12 = 72,729.03 : x
  2. Step 2: Convert to fraction form
    156,928.53/235,451.12 = 72,729.03/x
  3. Step 3: Cross multiply
    156,928.53x = 235,451.12 × 72,729.03
  4. Step 4: Simplify right side
    156,928.53x = 17,124,131,206.37
  5. Step 5: Solve for x
    x = 17,124,131,206.37/156,928.53
  6. Step 6: Final answer
    x = 109,120.57

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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.