Home / 156,215.56-215,611.05-101,835.67

Finding the Fourth Proportional to 156,215.56, 215,611.05 and 101,835.67

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Solution

The fourth proportional to 156,215.56, 215,611.05 and 101,835.67 is: 140,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,215.56 : 215,611.05 = 101,835.67 : x
  2. Step 2: Convert to fraction form
    156,215.56/215,611.05 = 101,835.67/x
  3. Step 3: Cross multiply
    156,215.56x = 215,611.05 × 101,835.67
  4. Step 4: Simplify right side
    156,215.56x = 21,956,895,736.15
  5. Step 5: Solve for x
    x = 21,956,895,736.15/156,215.56
  6. Step 6: Final answer
    x = 140,555.11

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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.